diff --git a/CHANGELOG.md b/CHANGELOG.md
index caad5204..23f8191a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## v1.7.86-alpha (2026-06-12)
+
+- Fleet now preserves the last known node list, alerts, and selection locally while telemetry refreshes in the background, so the dashboard no longer blanks on tab switches or update scans.
+- Connected nodes and identities now reuse their last loaded data instead of reloading the visible list every time the user revisits the tab.
+- The Fleet matrix and detail views now show actual node names and host information instead of raw node id prefixes.
+- The network map only redraws when its graph data actually changes, which stops the D3 scene from visually resetting on every refresh tick.
+- Mobile federation and system-update actions now stack full width, and the ElectrumX app health check allows a long startup window so slow sync nodes do not restart mid-index.
+- Validation passed with `git diff --check`, focused frontend tests, and `npm run type-check`.
+
 ## v1.7.85-alpha (2026-06-12)
 
 - ElectrumX now runs with less cache pressure and more memory headroom, reducing the restart loop seen during sync catch-up.
diff --git a/apps/electrumx/manifest.yml b/apps/electrumx/manifest.yml
index 20eb7a30..14ce4c46 100644
--- a/apps/electrumx/manifest.yml
+++ b/apps/electrumx/manifest.yml
@@ -57,6 +57,7 @@ app:
     interval: 30s
     timeout: 5s
     retries: 3
+    start_period: 10m
 
   bitcoin_integration:
     rpc_access: read-only
diff --git a/core/Cargo.lock b/core/Cargo.lock
index f754fb92..c91a89fa 100644
--- a/core/Cargo.lock
+++ b/core/Cargo.lock
@@ -80,7 +80,7 @@ checksum = "a23eb6b1614318a8071c9b2521f36b424b2c83db5eb3a0fead4a6c0809af6e61"
 
 [[package]]
 name = "archipelago"
-version = "1.7.85-alpha"
+version = "1.7.86-alpha"
 dependencies = [
  "anyhow",
  "archipelago-container",
diff --git a/core/archipelago/Cargo.toml b/core/archipelago/Cargo.toml
index 7bbc51f6..fddcca9b 100644
--- a/core/archipelago/Cargo.toml
+++ b/core/archipelago/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "archipelago"
-version = "1.7.85-alpha"
+version = "1.7.86-alpha"
 edition = "2021"
 description = "Archipelago Bitcoin Node OS - Native backend"
 authors = ["Archipelago Team"]
diff --git a/neode-ui/package-lock.json b/neode-ui/package-lock.json
index 063540f5..16a98713 100644
--- a/neode-ui/package-lock.json
+++ b/neode-ui/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "neode-ui",
-  "version": "1.7.85-alpha",
+  "version": "1.7.86-alpha",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "neode-ui",
-      "version": "1.7.85-alpha",
+      "version": "1.7.86-alpha",
       "dependencies": {
         "@types/dompurify": "^3.0.5",
         "@vue-leaflet/vue-leaflet": "^0.10.1",
diff --git a/neode-ui/package.json b/neode-ui/package.json
index 6f4cb32a..91e9468a 100644
--- a/neode-ui/package.json
+++ b/neode-ui/package.json
@@ -1,7 +1,7 @@
 {
   "name": "neode-ui",
   "private": true,
-  "version": "1.7.85-alpha",
+  "version": "1.7.86-alpha",
   "type": "module",
   "scripts": {
     "start": "./start-dev.sh",
diff --git a/neode-ui/src/components/federation/NetworkMap.vue b/neode-ui/src/components/federation/NetworkMap.vue
index e1fd4e14..c5ebf165 100644
--- a/neode-ui/src/components/federation/NetworkMap.vue
+++ b/neode-ui/src/components/federation/NetworkMap.vue
@@ -5,7 +5,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, onUnmounted, watch } from 'vue'
+import { ref, computed, onMounted, onUnmounted, watch } from 'vue'
 import * as d3 from 'd3'
 
 interface MapNode {
@@ -36,6 +36,11 @@ type SimLink = d3.SimulationLinkDatum<SimNode> & { source: string | SimNode; tar
 let simulation: d3.Simulation<SimNode, SimLink> | null = null
 let resizeObserver: ResizeObserver | null = null
 
+const graphSignature = computed(() => JSON.stringify({
+  nodes: props.nodes.map(n => [n.did, n.label, n.trust_level, n.online, n.app_count, n.is_self]),
+  links: props.links.map(l => [l.source, l.target]),
+}))
+
 function trustColor(level: string): string {
   switch (level) {
     case 'trusted': return '#4ade80'
@@ -50,6 +55,7 @@ function nodeRadius(n: MapNode): number {
 }
 
 function render() {
+  simulation?.stop()
   const svg = d3.select(svgRef.value!)
   svg.selectAll('*').remove()
 
@@ -160,7 +166,7 @@ onUnmounted(() => {
   resizeObserver?.disconnect()
 })
 
-watch(() => [props.nodes, props.links], () => render(), { deep: true })
+watch(graphSignature, () => render())
 </script>
 
 <style scoped>
diff --git a/neode-ui/src/style.css b/neode-ui/src/style.css
index 412ecf7d..09b0dc7c 100644
--- a/neode-ui/src/style.css
+++ b/neode-ui/src/style.css
@@ -556,8 +556,8 @@ input[type="radio"]:active + * {
      context) stay above the tab bar instead of sliding underneath it. */
   @media (max-width: 767px) {
     .chat-iframe-mobile {
-      height: calc(100vh - var(--mobile-tab-bar-height, 72px) - var(--safe-area-top, env(safe-area-inset-top, 0px)) - 16px) !important;
-      height: calc(100dvh - var(--mobile-tab-bar-height, 72px) - var(--safe-area-top, env(safe-area-inset-top, 0px)) - 16px) !important;
+      height: calc(100vh - var(--mobile-tab-bar-height, 72px) - var(--safe-area-top, env(safe-area-inset-top, 0px))) !important;
+      height: calc(100dvh - var(--mobile-tab-bar-height, 72px) - var(--safe-area-top, env(safe-area-inset-top, 0px))) !important;
       flex: none;
     }
   }
diff --git a/neode-ui/src/views/AppRegistries.vue b/neode-ui/src/views/AppRegistries.vue
index 925b9130..f03f107b 100644
--- a/neode-ui/src/views/AppRegistries.vue
+++ b/neode-ui/src/views/AppRegistries.vue
@@ -19,11 +19,11 @@
 
     <!-- Registry list -->
     <div class="glass-card p-6 mb-6">
-      <div class="flex items-start justify-between gap-4 mb-2">
+      <div class="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between mb-2">
         <h2 class="text-lg font-semibold text-white">Registries</h2>
         <button
           type="button"
-          class="text-xs px-3 py-1.5 rounded-md bg-white/5 hover:bg-white/10 text-white/70 hover:text-white transition-colors"
+          class="text-xs px-3 py-1.5 rounded-md bg-white/5 hover:bg-white/10 text-white/70 hover:text-white transition-colors w-full sm:w-auto"
           @click="openAddRegistry"
         >+ Add registry</button>
       </div>
@@ -118,7 +118,7 @@
     <!-- Back link -->
     <RouterLink
       to="/dashboard/settings"
-      class="glass-button rounded-lg px-5 py-2 text-sm font-medium inline-flex items-center gap-2"
+      class="glass-button w-full rounded-lg px-5 py-2 text-sm font-medium inline-flex items-center justify-center gap-2 sm:w-auto"
     >
       <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
         <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7" />
diff --git a/neode-ui/src/views/SystemUpdate.vue b/neode-ui/src/views/SystemUpdate.vue
index d62b7f2d..3f8c8993 100644
--- a/neode-ui/src/views/SystemUpdate.vue
+++ b/neode-ui/src/views/SystemUpdate.vue
@@ -69,12 +69,12 @@
       </div>
 
       <!-- Actions -->
-      <div class="flex gap-3">
+      <div class="flex flex-col gap-3 sm:flex-row">
         <!-- Git path: one-shot pull+rebuild+restart -->
         <button
           v-if="updateMethod === 'git' && !applying"
           @click="requestGitApply"
-          class="glass-button rounded-lg px-6 py-2 text-sm font-medium bg-orange-500/20 border-orange-400/30"
+          class="glass-button w-full rounded-lg px-6 py-2 text-sm font-medium bg-orange-500/20 border-orange-400/30 sm:w-auto"
         >
           {{ t('systemUpdate.pullAndRebuild') }}
         </button>
@@ -82,14 +82,14 @@
         <button
           v-if="updateMethod !== 'git' && !downloading && !applying && !downloaded"
           @click="downloadUpdate"
-          class="glass-button rounded-lg px-6 py-2 text-sm font-medium"
+          class="glass-button w-full rounded-lg px-6 py-2 text-sm font-medium sm:w-auto"
         >
           {{ t('systemUpdate.downloadUpdate') }}
         </button>
         <button
           v-if="updateMethod !== 'git' && downloaded && !applying"
           @click="requestApply"
-          class="glass-button rounded-lg px-6 py-2 text-sm font-medium bg-orange-500/20 border-orange-400/30"
+          class="glass-button w-full rounded-lg px-6 py-2 text-sm font-medium bg-orange-500/20 border-orange-400/30 sm:w-auto"
         >
           {{ t('systemUpdate.applyUpdate') }}
         </button>
@@ -145,8 +145,16 @@
     <!-- Applying -->
     <div v-if="applying" class="glass-card p-6 mb-6">
       <h2 class="text-lg font-semibold text-white mb-4">{{ t('systemUpdate.applying') }}</h2>
-      <div class="flex items-center gap-3">
-        <div class="w-5 h-5 border-2 border-orange-400 border-t-transparent rounded-full animate-spin"></div>
+      <div class="flex flex-col items-start gap-3 sm:flex-row sm:items-center">
+        <svg
+          class="w-5 h-5 shrink-0 animate-spin text-orange-400"
+          viewBox="0 0 24 24"
+          fill="none"
+          aria-hidden="true"
+        >
+          <circle cx="12" cy="12" r="10" stroke="currentColor" stroke-width="3" stroke-opacity="0.2"></circle>
+          <path fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z"></path>
+        </svg>
         <p class="text-sm text-white/70">{{ t('systemUpdate.applyWarning') }}</p>
       </div>
     </div>
@@ -262,22 +270,25 @@
     <!-- Actions row -->
     <div class="glass-card p-6">
       <h2 class="text-lg font-semibold text-white mb-4">{{ t('systemUpdate.actions') }}</h2>
-      <div class="flex flex-wrap gap-3">
+      <div class="flex flex-col gap-3 sm:flex-row sm:flex-wrap">
         <button
           @click="checkForUpdates"
           :disabled="loading"
-          class="glass-button rounded-lg px-5 py-2 text-sm font-medium disabled:opacity-40"
+          class="glass-button w-full rounded-lg px-5 py-2 text-sm font-medium disabled:opacity-40 sm:w-auto"
         >
           {{ loading ? t('systemUpdate.checking') : t('systemUpdate.checkForUpdates') }}
         </button>
         <button
           v-if="rollbackAvailable"
           @click="requestRollback"
-          class="glass-button rounded-lg px-5 py-2 text-sm font-medium bg-red-500/10 border-red-400/20"
+          class="glass-button w-full rounded-lg px-5 py-2 text-sm font-medium bg-red-500/10 border-red-400/20 sm:w-auto"
         >
           {{ t('systemUpdate.rollback') }}
         </button>
-        <RouterLink to="/dashboard/settings" class="glass-button rounded-lg px-5 py-2 text-sm font-medium text-center">
+        <RouterLink
+          to="/dashboard/settings"
+          class="glass-button w-full rounded-lg px-5 py-2 text-sm font-medium text-center sm:w-auto"
+        >
           {{ t('systemUpdate.backToSettings') }}
         </RouterLink>
       </div>
@@ -650,12 +661,28 @@ const installStartedAt = ref<number>(0)
 const installElapsedSec = ref(0)
 let installPollTimer: ReturnType<typeof setInterval> | null = null
 let installElapsedTimer: ReturnType<typeof setInterval> | null = null
+let installReadyTimer: ReturnType<typeof setTimeout> | null = null
 const installElapsedLabel = computed(() => {
   const s = installElapsedSec.value
   if (s < 60) return `Elapsed: ${s}s`
   return `Elapsed: ${Math.floor(s / 60)}m${s % 60 < 10 ? '0' : ''}${s % 60}s`
 })
+function clearInstallTimers() {
+  if (installPollTimer) {
+    clearInterval(installPollTimer)
+    installPollTimer = null
+  }
+  if (installElapsedTimer) {
+    clearInterval(installElapsedTimer)
+    installElapsedTimer = null
+  }
+  if (installReadyTimer) {
+    clearTimeout(installReadyTimer)
+    installReadyTimer = null
+  }
+}
 function startInstallOverlay(targetVersion: string) {
+  clearInstallTimers()
   installing.value = true
   installStage.value = 'applying'
   installTargetVersion.value = targetVersion
@@ -672,7 +699,7 @@ function startInstallOverlay(targetVersion: string) {
   // Start polling /health after a short delay — the backend restarts 2s
   // after replying to update.apply, so an immediate poll would see the
   // old backend and conclude nothing happened.
-  setTimeout(() => {
+  installReadyTimer = setTimeout(() => {
     installStage.value = 'restarting'
     installPollTimer = setInterval(pollHealth, 1500)
   }, 2500)
@@ -687,22 +714,37 @@ async function pollHealth() {
       installStage.value = 'ready'
       if (installPollTimer) { clearInterval(installPollTimer); installPollTimer = null }
       // Brief pause so the user sees the "Ready" state before the reload.
-      setTimeout(() => { window.location.reload() }, 1200)
+      installReadyTimer = setTimeout(() => { window.location.reload() }, 1200)
     } else {
       // Backend is up but still reporting the old version — frontend
       // and backend are mid-swap. Signal to the user.
       installStage.value = 'reconnecting'
+      void confirmBackendUpdateSettled()
     }
   } catch {
     // Fetch fails while the server is mid-restart. Stay in 'restarting'.
   }
 }
+async function confirmBackendUpdateSettled() {
+  try {
+    const res = await rpcClient.call<{
+      current_version: string
+      update_in_progress: boolean
+    }>({ method: 'update.status' })
+    if (!res.update_in_progress && installStage.value !== 'ready' && installStage.value !== 'stalled') {
+      installStage.value = 'ready'
+      if (installPollTimer) { clearInterval(installPollTimer); installPollTimer = null }
+      installReadyTimer = setTimeout(() => { window.location.reload() }, 800)
+    }
+  } catch {
+    // Keep waiting on /health.
+  }
+}
 function reloadNow() { window.location.reload() }
 // Cleanup if the component is torn down mid-install (unlikely but safe).
 import { onBeforeUnmount } from 'vue'
 onBeforeUnmount(() => {
-  if (installPollTimer) clearInterval(installPollTimer)
-  if (installElapsedTimer) clearInterval(installElapsedTimer)
+  clearInstallTimers()
 })
 
 const lastCheckDisplay = computed(() => {
diff --git a/neode-ui/src/views/federation/QuickActions.vue b/neode-ui/src/views/federation/QuickActions.vue
index 1fc6442e..bf37b8f5 100644
--- a/neode-ui/src/views/federation/QuickActions.vue
+++ b/neode-ui/src/views/federation/QuickActions.vue
@@ -16,7 +16,7 @@
           </div>
           <button
             @click="$emit('generate-invite', 'trusted')"
-            class="w-fit px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors disabled:opacity-50"
+            class="w-full sm:w-fit px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors disabled:opacity-50"
             :disabled="generatingInvite"
           >
             {{ generatingInvite && inviteType === 'trusted' ? 'Generating...' : 'Generate Code' }}
@@ -36,7 +36,7 @@
           </div>
           <button
             @click="$emit('generate-invite', 'observer')"
-            class="w-fit px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors disabled:opacity-50"
+            class="w-full sm:w-fit px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors disabled:opacity-50"
             :disabled="generatingInvite"
           >
             {{ generatingInvite && inviteType === 'observer' ? 'Generating...' : 'Generate Code' }}
@@ -56,7 +56,7 @@
           </div>
           <button
             @click="$emit('show-join')"
-            class="w-fit px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors"
+            class="w-full sm:w-fit px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors"
           >
             Enter Code
           </button>
@@ -75,7 +75,7 @@
           </div>
           <button
             @click="$emit('sync')"
-            class="w-fit px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors disabled:opacity-50"
+            class="w-full sm:w-fit px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors disabled:opacity-50"
             :disabled="syncing"
           >
             {{ syncing ? 'Syncing...' : 'Sync Now' }}
diff --git a/neode-ui/src/views/fleet/FleetContainerMatrix.vue b/neode-ui/src/views/fleet/FleetContainerMatrix.vue
index 98b7398a..f96a7634 100644
--- a/neode-ui/src/views/fleet/FleetContainerMatrix.vue
+++ b/neode-ui/src/views/fleet/FleetContainerMatrix.vue
@@ -13,9 +13,10 @@
             <th
               v-for="node in sortedNodes"
               :key="node.node_id"
-              class="fleet-matrix-header-cell font-mono"
+              class="fleet-matrix-header-cell"
+              :title="fleetNodeSubtitle(node)"
             >
-              {{ node.node_id.slice(0, 6) }}
+              {{ fleetNodeDisplayName(node) }}
             </th>
           </tr>
         </thead>
@@ -39,7 +40,7 @@
 </template>
 
 <script setup lang="ts">
-import { type FleetNode, getContainerState } from './useFleetData'
+import { type FleetNode, getContainerState, fleetNodeDisplayName, fleetNodeSubtitle } from './useFleetData'
 
 defineProps<{
   nodes: FleetNode[]
diff --git a/neode-ui/src/views/fleet/FleetNodeDetail.vue b/neode-ui/src/views/fleet/FleetNodeDetail.vue
index 356062f4..b2f6d20c 100644
--- a/neode-ui/src/views/fleet/FleetNodeDetail.vue
+++ b/neode-ui/src/views/fleet/FleetNodeDetail.vue
@@ -11,7 +11,7 @@
     <div class="grid grid-cols-2 lg:grid-cols-4 gap-4 mb-6">
       <div class="monitoring-stat-card">
         <p class="text-xs text-white/50 uppercase tracking-wide">Hostname</p>
-        <p class="text-lg font-bold text-white truncate">{{ node.hostname || 'Unknown' }}</p>
+        <p class="text-lg font-bold text-white truncate">{{ node.hostname || fleetNodeDisplayName(node) }}</p>
       </div>
       <div class="monitoring-stat-card">
         <p class="text-xs text-white/50 uppercase tracking-wide">Address</p>
diff --git a/neode-ui/src/views/fleet/useFleetData.ts b/neode-ui/src/views/fleet/useFleetData.ts
index f2c93529..4a2df4f7 100644
--- a/neode-ui/src/views/fleet/useFleetData.ts
+++ b/neode-ui/src/views/fleet/useFleetData.ts
@@ -187,21 +187,59 @@ export function normalizeNodeHistoryResponse(data: {
   return []
 }
 
+type FleetCache = {
+  nodes: FleetNode[]
+  fleetAlerts: FleetAlert[]
+  lastRefreshed: string
+  selectedNodeId: string | null
+  sortBy: SortOption
+}
+
+const FLEET_CACHE_KEY = 'archipelago.fleet.cache.v1'
+
+function readFleetCache(): Partial<FleetCache> {
+  if (typeof window === 'undefined') return {}
+  try {
+    const raw = window.sessionStorage.getItem(FLEET_CACHE_KEY)
+    if (!raw) return {}
+    const parsed = JSON.parse(raw) as Partial<FleetCache>
+    return {
+      nodes: Array.isArray(parsed.nodes) ? parsed.nodes.map(normalizeFleetNode) : [],
+      fleetAlerts: Array.isArray(parsed.fleetAlerts) ? parsed.fleetAlerts : [],
+      lastRefreshed: typeof parsed.lastRefreshed === 'string' ? parsed.lastRefreshed : '',
+      selectedNodeId: typeof parsed.selectedNodeId === 'string' ? parsed.selectedNodeId : null,
+      sortBy: parsed.sortBy === 'last-seen' || parsed.sortBy === 'name' ? parsed.sortBy : 'status',
+    }
+  } catch {
+    return {}
+  }
+}
+
+function writeFleetCache(state: FleetCache) {
+  if (typeof window === 'undefined') return
+  try {
+    window.sessionStorage.setItem(FLEET_CACHE_KEY, JSON.stringify(state))
+  } catch {
+    // Cache is opportunistic only.
+  }
+}
+
 // --- Composable ---
 
 export function useFleetData() {
-  const loading = ref(true)
+  const cached = readFleetCache()
+  const loading = ref(!(cached.nodes?.length ?? 0))
   const errorMessage = ref('')
-  const nodes = ref<FleetNode[]>([])
-  const fleetAlerts = ref<FleetAlert[]>([])
+  const nodes = ref<FleetNode[]>(cached.nodes ?? [])
+  const fleetAlerts = ref<FleetAlert[]>(cached.fleetAlerts ?? [])
   const refreshing = ref(false)
   const alertsLoading = ref(false)
-  const selectedNodeId = ref<string | null>(null)
+  const selectedNodeId = ref<string | null>(cached.selectedNodeId ?? null)
   const nodeHistory = ref<NodeHistoryEntry[]>([])
   const nodeHistoryLoading = ref(false)
   const autoRefresh = ref(true)
-  const lastRefreshed = ref('')
-  const sortBy = ref<SortOption>('status')
+  const lastRefreshed = ref(cached.lastRefreshed ?? '')
+  const sortBy = ref<SortOption>(cached.sortBy ?? 'status')
   const chartWidth = ref(300)
   let pollTimer: ReturnType<typeof setInterval> | null = null
 
@@ -284,6 +322,13 @@ export function useFleetData() {
       if (data?.nodes) {
         nodes.value = data.nodes.map(normalizeFleetNode)
         lastRefreshed.value = new Date().toISOString()
+        writeFleetCache({
+          nodes: nodes.value,
+          fleetAlerts: fleetAlerts.value,
+          lastRefreshed: lastRefreshed.value,
+          selectedNodeId: selectedNodeId.value,
+          sortBy: sortBy.value,
+        })
       }
     } catch (err) {
       if (loading.value) {
@@ -300,6 +345,13 @@ export function useFleetData() {
       })
       if (data?.alerts) {
         fleetAlerts.value = data.alerts
+        writeFleetCache({
+          nodes: nodes.value,
+          fleetAlerts: fleetAlerts.value,
+          lastRefreshed: lastRefreshed.value,
+          selectedNodeId: selectedNodeId.value,
+          sortBy: sortBy.value,
+        })
       }
     } catch {
       // Non-critical, retry on next poll
@@ -342,6 +394,13 @@ export function useFleetData() {
     } else {
       selectedNodeId.value = nodeId
     }
+    writeFleetCache({
+      nodes: nodes.value,
+      fleetAlerts: fleetAlerts.value,
+      lastRefreshed: lastRefreshed.value,
+      selectedNodeId: selectedNodeId.value,
+      sortBy: sortBy.value,
+    })
   }
 
   function toggleAutoRefresh() {
@@ -400,6 +459,23 @@ export function useFleetData() {
     } else {
       nodeHistory.value = []
     }
+    writeFleetCache({
+      nodes: nodes.value,
+      fleetAlerts: fleetAlerts.value,
+      lastRefreshed: lastRefreshed.value,
+      selectedNodeId: selectedNodeId.value,
+      sortBy: sortBy.value,
+    })
+  })
+
+  watch(sortBy, () => {
+    writeFleetCache({
+      nodes: nodes.value,
+      fleetAlerts: fleetAlerts.value,
+      lastRefreshed: lastRefreshed.value,
+      selectedNodeId: selectedNodeId.value,
+      sortBy: sortBy.value,
+    })
   })
 
   // --- Lifecycle ---
diff --git a/neode-ui/src/views/settings/AppRegistriesSection.vue b/neode-ui/src/views/settings/AppRegistriesSection.vue
index 4bc8d55f..e9e490df 100644
--- a/neode-ui/src/views/settings/AppRegistriesSection.vue
+++ b/neode-ui/src/views/settings/AppRegistriesSection.vue
@@ -5,7 +5,7 @@ import { RouterLink } from 'vue-router'
 <template>
   <!-- App Registries Section -->
   <div class="glass-card px-6 py-6 mb-6">
-    <div class="flex items-center justify-between">
+    <div class="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
       <div>
         <h2 class="text-xl font-semibold text-white/96">App registries</h2>
         <p class="text-sm text-white/60 mt-1">
@@ -14,7 +14,7 @@ import { RouterLink } from 'vue-router'
       </div>
       <RouterLink
         to="/dashboard/settings/registries"
-        class="glass-button px-4 py-2 rounded-lg text-sm flex items-center gap-2"
+        class="glass-button px-4 py-2 rounded-lg text-sm flex w-full items-center justify-center gap-2 sm:w-auto"
       >
         <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
           <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
diff --git a/neode-ui/src/views/settings/SystemUpdatesSection.vue b/neode-ui/src/views/settings/SystemUpdatesSection.vue
index 3ab19cf2..021bcb16 100644
--- a/neode-ui/src/views/settings/SystemUpdatesSection.vue
+++ b/neode-ui/src/views/settings/SystemUpdatesSection.vue
@@ -7,12 +7,15 @@ const { t } = useI18n()
 <template>
   <!-- System Updates Section -->
   <div class="glass-card px-6 py-6 mb-6">
-    <div class="flex items-center justify-between">
+    <div class="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
       <div>
         <h2 class="text-xl font-semibold text-white/96">{{ t('settings.systemUpdates') }}</h2>
         <p class="text-sm text-white/60 mt-1">{{ t('settings.systemUpdatesDesc') }}</p>
       </div>
-      <RouterLink to="/dashboard/settings/update" class="glass-button px-4 py-2 rounded-lg text-sm flex items-center gap-2">
+      <RouterLink
+        to="/dashboard/settings/update"
+        class="glass-button px-4 py-2 rounded-lg text-sm flex w-full items-center justify-center gap-2 sm:w-auto"
+      >
         <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
           <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
         </svg>
diff --git a/neode-ui/src/views/web5/Web5ConnectedNodes.vue b/neode-ui/src/views/web5/Web5ConnectedNodes.vue
index dfbb704a..fde47b7a 100644
--- a/neode-ui/src/views/web5/Web5ConnectedNodes.vue
+++ b/neode-ui/src/views/web5/Web5ConnectedNodes.vue
@@ -324,14 +324,49 @@ const messageToast = useMessageToast()
 const web5Badge = useWeb5BadgeStore()
 const appStore = useAppStore()
 
+const CONNECTED_NODES_CACHE_KEY = 'archipelago.web5.connected-nodes.v1'
+type ConnectedNodesCache = {
+  peers: Peer[]
+  observers: Peer[]
+  peerReachable: Record<string, boolean>
+  connectionRequests: ConnectionRequest[]
+}
+
+function readConnectedNodesCache(): Partial<ConnectedNodesCache> {
+  if (typeof window === 'undefined') return {}
+  try {
+    const raw = window.sessionStorage.getItem(CONNECTED_NODES_CACHE_KEY)
+    if (!raw) return {}
+    const parsed = JSON.parse(raw) as Partial<ConnectedNodesCache>
+    return {
+      peers: Array.isArray(parsed.peers) ? parsed.peers : [],
+      observers: Array.isArray(parsed.observers) ? parsed.observers : [],
+      peerReachable: parsed.peerReachable && typeof parsed.peerReachable === 'object' ? parsed.peerReachable : {},
+      connectionRequests: Array.isArray(parsed.connectionRequests) ? parsed.connectionRequests : [],
+    }
+  } catch {
+    return {}
+  }
+}
+
+function writeConnectedNodesCache(state: ConnectedNodesCache) {
+  if (typeof window === 'undefined') return
+  try {
+    window.sessionStorage.setItem(CONNECTED_NODES_CACHE_KEY, JSON.stringify(state))
+  } catch {
+    // Cache is best-effort.
+  }
+}
+
 const nodesContainerRef = ref<HTMLElement | null>(null)
 const nodesContainerTab = ref<'trusted' | 'observers' | 'messages' | 'requests'>('trusted')
 const { receivedMessages, loadingMessages, unreadCount, loadReceivedMessages, markAsRead } = messageToast
 
-const peers = ref<Peer[]>([])
-const observers = ref<Peer[]>([])
+const cached = readConnectedNodesCache()
+const peers = ref<Peer[]>(cached.peers ?? [])
+const observers = ref<Peer[]>(cached.observers ?? [])
 const loadingPeers = ref(false)
-const peerReachableLocal = ref<Record<string, boolean>>({})
+const peerReachableLocal = ref<Record<string, boolean>>(cached.peerReachable ?? {})
 const peerReachable = computed(() => ({ ...appStore.peerHealth, ...peerReachableLocal.value }))
 const discovering = ref(false)
 
@@ -351,7 +386,7 @@ const sendMessageError = ref('')
 const sendMessageSuccess = ref('')
 
 // Connection requests
-const connectionRequests = ref<ConnectionRequest[]>([])
+const connectionRequests = ref<ConnectionRequest[]>(cached.connectionRequests ?? [])
 const loadingRequests = ref(false)
 const processingRequestId = ref<string | null>(null)
 
@@ -388,6 +423,7 @@ function switchToRequestsTab() {
 }
 
 async function loadPeers() {
+  const hadPeers = peers.value.length > 0 || observers.value.length > 0
   loadingPeers.value = true
   try {
     const res = await rpcClient.listPeers()
@@ -427,8 +463,18 @@ async function loadPeers() {
         peerReachableLocal.value[p.onion] = false
       }
     }
+    writeConnectedNodesCache({
+      peers: peers.value,
+      observers: observers.value,
+      peerReachable: peerReachableLocal.value,
+      connectionRequests: connectionRequests.value,
+    })
   } catch (e) {
     if (import.meta.env.DEV) console.error('Failed to load peers:', e)
+    if (!hadPeers) {
+      peers.value = []
+      observers.value = []
+    }
   } finally {
     loadingPeers.value = false
   }
@@ -483,6 +529,12 @@ async function loadConnectionRequests() {
     const res = await rpcClient.call<{ requests: ConnectionRequest[] }>({ method: 'network.list-requests' })
     connectionRequests.value = res.requests || []
     web5Badge.pendingRequestCount = connectionRequests.value.length
+    writeConnectedNodesCache({
+      peers: peers.value,
+      observers: observers.value,
+      peerReachable: peerReachableLocal.value,
+      connectionRequests: connectionRequests.value,
+    })
   } catch {
     if (!hadRequests) connectionRequests.value = []
   } finally {
@@ -496,6 +548,12 @@ async function acceptRequest(requestId: string) {
     await rpcClient.call({ method: 'network.accept-request', params: { request_id: requestId } })
     connectionRequests.value = connectionRequests.value.filter(r => r.id !== requestId)
     web5Badge.pendingRequestCount = connectionRequests.value.length
+    writeConnectedNodesCache({
+      peers: peers.value,
+      observers: observers.value,
+      peerReachable: peerReachableLocal.value,
+      connectionRequests: connectionRequests.value,
+    })
     await loadPeers()
     emit('toast', t('web5.connectionAccepted'))
   } catch {
@@ -511,6 +569,12 @@ async function rejectRequest(requestId: string) {
     await rpcClient.call({ method: 'network.reject-request', params: { request_id: requestId } })
     connectionRequests.value = connectionRequests.value.filter(r => r.id !== requestId)
     web5Badge.pendingRequestCount = connectionRequests.value.length
+    writeConnectedNodesCache({
+      peers: peers.value,
+      observers: observers.value,
+      peerReachable: peerReachableLocal.value,
+      connectionRequests: connectionRequests.value,
+    })
     emit('toast', t('web5.requestRejected'))
   } catch {
     emit('toast', t('web5.failedToRejectRequest'))
diff --git a/neode-ui/src/views/web5/Web5Identities.vue b/neode-ui/src/views/web5/Web5Identities.vue
index c6a0519a..221a3559 100644
--- a/neode-ui/src/views/web5/Web5Identities.vue
+++ b/neode-ui/src/views/web5/Web5Identities.vue
@@ -389,6 +389,29 @@ import type { ManagedIdentity, IdentityProfile } from './types'
 
 const { t } = useI18n()
 
+const IDENTITIES_CACHE_KEY = 'archipelago.web5.identities.v1'
+
+function readIdentitiesCache(): ManagedIdentity[] {
+  if (typeof window === 'undefined') return []
+  try {
+    const raw = window.sessionStorage.getItem(IDENTITIES_CACHE_KEY)
+    if (!raw) return []
+    const parsed = JSON.parse(raw) as ManagedIdentity[]
+    return Array.isArray(parsed) ? parsed : []
+  } catch {
+    return []
+  }
+}
+
+function writeIdentitiesCache(identities: ManagedIdentity[]) {
+  if (typeof window === 'undefined') return
+  try {
+    window.sessionStorage.setItem(IDENTITIES_CACHE_KEY, JSON.stringify(identities))
+  } catch {
+    // Cache is opportunistic only.
+  }
+}
+
 defineProps<{
   showStagger: boolean
 }>()
@@ -397,7 +420,7 @@ const emit = defineEmits<{
   toast: [text: string]
 }>()
 
-const managedIdentities = ref<ManagedIdentity[]>([])
+const managedIdentities = ref<ManagedIdentity[]>(readIdentitiesCache())
 const identitiesLoading = ref(false)
 const showCreateIdentityModal = ref(false)
 const newIdentityName = ref('Personal')
@@ -508,6 +531,7 @@ async function loadIdentities() {
   try {
     const res = await rpcClient.call<{ identities: ManagedIdentity[] }>({ method: 'identity.list' })
     managedIdentities.value = res.identities || []
+    writeIdentitiesCache(managedIdentities.value)
   } catch {
     if (!hadIdentities) managedIdentities.value = []
   } finally {
diff --git a/neode-ui/src/views/web5/Web5QuickActions.vue b/neode-ui/src/views/web5/Web5QuickActions.vue
index 9bdb033d..fa3a9bcc 100644
--- a/neode-ui/src/views/web5/Web5QuickActions.vue
+++ b/neode-ui/src/views/web5/Web5QuickActions.vue
@@ -33,12 +33,12 @@
           </div>
         </div>
         <div v-if="userDid" class="flex gap-2 mt-auto">
-          <button
-            @click="$emit('copyDid')"
-            class="flex-1 px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors"
-          >
-            {{ didCopied ? t('common.copiedBang') : t('web5.copyDid') }}
-          </button>
+        <button
+          @click="$emit('copyDid')"
+          class="flex-1 px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors"
+        >
+          {{ didCopied ? t('common.copiedBang') : t('web5.copyDid') }}
+        </button>
           <button
             @click="$emit('showDidDocument')"
             class="flex-1 px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors"
@@ -69,19 +69,19 @@
           </div>
         </div>
         <div v-if="dhtDid" class="flex gap-2 mt-auto">
-          <button
-            @click="$emit('copyDhtDid')"
-            class="flex-1 px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors"
-          >
-            {{ dhtDidCopied ? 'Copied!' : 'Copy' }}
-          </button>
-          <button
-            @click="$emit('refreshDhtDid')"
-            :disabled="publishingDht"
-            class="flex-1 px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors disabled:opacity-50"
-          >
-            {{ publishingDht ? 'Refreshing...' : 'Refresh DHT' }}
-          </button>
+        <button
+          @click="$emit('copyDhtDid')"
+          class="flex-1 px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors"
+        >
+          {{ dhtDidCopied ? 'Copied!' : 'Copy' }}
+        </button>
+        <button
+          @click="$emit('refreshDhtDid')"
+          :disabled="publishingDht"
+          class="flex-1 px-3 py-1.5 glass-button glass-button-sm rounded text-xs font-medium text-white/90 hover:text-white transition-colors disabled:opacity-50"
+        >
+          {{ publishingDht ? 'Refreshing...' : 'Refresh DHT' }}
+        </button>
         </div>
         <button
           v-else-if="userDid"
diff --git a/release-manifest.json b/release-manifest.json
index 899a0cb5..c1586bf0 100644
--- a/release-manifest.json
+++ b/release-manifest.json
@@ -1,30 +1,30 @@
 {
-  "version": "1.7.85-alpha",
+  "version": "1.7.86-alpha",
   "release_date": "2026-06-12",
   "changelog": [
-    "ElectrumX now runs with less cache pressure and more memory headroom, reducing the restart loop seen during sync catch-up.",
-    "Portainer is pinned to `2.19.4` instead of `latest`, avoiding schema-drift restarts from surprise image updates.",
-    "LND receive-address creation now asks for a native SegWit address and returns clearer wallet/readiness failures when an address is not available.",
-    "Fleet telemetry now carries server name, hostname, and server URL, and the Fleet dashboard shows those names instead of hashed node ids.",
-    "Trusted federation peers are still auto-added transitively, but the local node no longer imports itself back into the fleet list.",
-    "Validation passed locally for the touched frontend helpers, `git diff --check`, and Rust formatting."
+    "Fleet now preserves the last known node list, alerts, and selection locally while telemetry refreshes in the background, so the dashboard no longer blanks on tab switches or update scans.",
+    "Connected nodes and identities now reuse their last loaded data instead of reloading the visible list every time the user revisits the tab.",
+    "The Fleet matrix and detail views now show actual node names and host information instead of raw node id prefixes.",
+    "The network map only redraws when its graph data actually changes, which stops the D3 scene from visually resetting on every refresh tick.",
+    "Mobile federation and system-update actions now stack full width, and the ElectrumX app health check allows a long startup window so slow sync nodes do not restart mid-index.",
+    "Validation passed with `git diff --check`, focused frontend tests, and `npm run type-check`."
   ],
   "components": [
     {
       "name": "archipelago",
-      "current_version": "1.7.85-alpha",
-      "new_version": "1.7.85-alpha",
-      "download_url": "http://146.59.87.168:3000/lfg2025/archy/releases/download/v1.7.85-alpha/archipelago",
-      "sha256": "06a6fe6e8f2e50bcda6c152c2de1a874edc84b2e65377f6e06d195c4eebc9cde",
-      "size_bytes": 44049488
+      "current_version": "1.7.86-alpha",
+      "new_version": "1.7.86-alpha",
+      "download_url": "http://146.59.87.168:3000/lfg2025/archy/releases/download/v1.7.86-alpha/archipelago",
+      "sha256": "2eb936fe188df25947a2d626af1b22be2f7ef9dcbc927542389de3b38e80f9e6",
+      "size_bytes": 44050232
     },
     {
-      "name": "archipelago-frontend-1.7.85-alpha.tar.gz",
-      "current_version": "1.7.85-alpha",
-      "new_version": "1.7.85-alpha",
-      "download_url": "http://146.59.87.168:3000/lfg2025/archy/releases/download/v1.7.85-alpha/archipelago-frontend-1.7.85-alpha.tar.gz",
-      "sha256": "c809fb27772773925d89b711236a81834465229d9f544bd65cf5816776cfda76",
-      "size_bytes": 184057997
+      "name": "archipelago-frontend-1.7.86-alpha.tar.gz",
+      "current_version": "1.7.86-alpha",
+      "new_version": "1.7.86-alpha",
+      "download_url": "http://146.59.87.168:3000/lfg2025/archy/releases/download/v1.7.86-alpha/archipelago-frontend-1.7.86-alpha.tar.gz",
+      "sha256": "9f6f146eaf709cd3e778550bb7a56877dce551cb6d631bccf08e80ed977dd17b",
+      "size_bytes": 184060614
     }
   ]
 }
diff --git a/releases/manifest.json b/releases/manifest.json
index 899a0cb5..c1586bf0 100644
--- a/releases/manifest.json
+++ b/releases/manifest.json
@@ -1,30 +1,30 @@
 {
-  "version": "1.7.85-alpha",
+  "version": "1.7.86-alpha",
   "release_date": "2026-06-12",
   "changelog": [
-    "ElectrumX now runs with less cache pressure and more memory headroom, reducing the restart loop seen during sync catch-up.",
-    "Portainer is pinned to `2.19.4` instead of `latest`, avoiding schema-drift restarts from surprise image updates.",
-    "LND receive-address creation now asks for a native SegWit address and returns clearer wallet/readiness failures when an address is not available.",
-    "Fleet telemetry now carries server name, hostname, and server URL, and the Fleet dashboard shows those names instead of hashed node ids.",
-    "Trusted federation peers are still auto-added transitively, but the local node no longer imports itself back into the fleet list.",
-    "Validation passed locally for the touched frontend helpers, `git diff --check`, and Rust formatting."
+    "Fleet now preserves the last known node list, alerts, and selection locally while telemetry refreshes in the background, so the dashboard no longer blanks on tab switches or update scans.",
+    "Connected nodes and identities now reuse their last loaded data instead of reloading the visible list every time the user revisits the tab.",
+    "The Fleet matrix and detail views now show actual node names and host information instead of raw node id prefixes.",
+    "The network map only redraws when its graph data actually changes, which stops the D3 scene from visually resetting on every refresh tick.",
+    "Mobile federation and system-update actions now stack full width, and the ElectrumX app health check allows a long startup window so slow sync nodes do not restart mid-index.",
+    "Validation passed with `git diff --check`, focused frontend tests, and `npm run type-check`."
   ],
   "components": [
     {
       "name": "archipelago",
-      "current_version": "1.7.85-alpha",
-      "new_version": "1.7.85-alpha",
-      "download_url": "http://146.59.87.168:3000/lfg2025/archy/releases/download/v1.7.85-alpha/archipelago",
-      "sha256": "06a6fe6e8f2e50bcda6c152c2de1a874edc84b2e65377f6e06d195c4eebc9cde",
-      "size_bytes": 44049488
+      "current_version": "1.7.86-alpha",
+      "new_version": "1.7.86-alpha",
+      "download_url": "http://146.59.87.168:3000/lfg2025/archy/releases/download/v1.7.86-alpha/archipelago",
+      "sha256": "2eb936fe188df25947a2d626af1b22be2f7ef9dcbc927542389de3b38e80f9e6",
+      "size_bytes": 44050232
     },
     {
-      "name": "archipelago-frontend-1.7.85-alpha.tar.gz",
-      "current_version": "1.7.85-alpha",
-      "new_version": "1.7.85-alpha",
-      "download_url": "http://146.59.87.168:3000/lfg2025/archy/releases/download/v1.7.85-alpha/archipelago-frontend-1.7.85-alpha.tar.gz",
-      "sha256": "c809fb27772773925d89b711236a81834465229d9f544bd65cf5816776cfda76",
-      "size_bytes": 184057997
+      "name": "archipelago-frontend-1.7.86-alpha.tar.gz",
+      "current_version": "1.7.86-alpha",
+      "new_version": "1.7.86-alpha",
+      "download_url": "http://146.59.87.168:3000/lfg2025/archy/releases/download/v1.7.86-alpha/archipelago-frontend-1.7.86-alpha.tar.gz",
+      "sha256": "9f6f146eaf709cd3e778550bb7a56877dce551cb6d631bccf08e80ed977dd17b",
+      "size_bytes": 184060614
     }
   ]
 }