diff --git a/desktop/src/app/App.tsx b/desktop/src/app/App.tsx
index 69bee08b22..d2bc3d7f63 100644
--- a/desktop/src/app/App.tsx
+++ b/desktop/src/app/App.tsx
@@ -429,9 +429,15 @@ function CommunityApp({
   const isCommunitySwitch = hasSwitchedCommunityRef.current;
   const isContinuingOnboarding = continueOnboarding && !isCommunitySwitch;
 
+  const transaction = communityOnboarding.transaction;
+  const communityInitAttempt =
+    transaction && transaction.communityId === activeCommunity?.id
+      ? (transaction.initAttempt ?? 0)
+      : -1;
   const community = useCommunityInit(
     activeCommunity,
     communityKey,
+    communityInitAttempt,
     sharedIdentity,
     isFindingCommunityAfterLeave,
     communities,
@@ -536,7 +542,6 @@ function CommunityApp({
 
   const bootSplashPhase = useBootSplashHold();
 
-  const transaction = communityOnboarding.transaction;
   useEffect(() => {
     if (transaction?.stage !== "connecting") {
       connectingTransactionRef.current = null;
@@ -546,7 +551,8 @@ function CommunityApp({
   const targetIsReady =
     transaction?.communityId === activeCommunity?.id &&
     community.isReady &&
-    community.appliedKey === communityKey;
+    community.appliedKey === communityKey &&
+    community.initAttempt === communityInitAttempt;
   const enterpriseProfile = community.isReady
     ? community.enterpriseProfile
     : null;
@@ -554,6 +560,8 @@ function CommunityApp({
   useEffect(() => {
     if (
       transaction?.stage !== "connecting" ||
+      !("initAttempt" in community) ||
+      community.initAttempt !== communityInitAttempt ||
       !("appliedKey" in community) ||
       community.appliedKey !== communityKey ||
       !("error" in community) ||
@@ -565,7 +573,13 @@ function CommunityApp({
       { stage: "corporate-profile", error: community.error },
       transaction.id,
     );
-  }, [community, communityKey, communityOnboarding, transaction]);
+  }, [
+    community,
+    communityInitAttempt,
+    communityKey,
+    communityOnboarding,
+    transaction,
+  ]);
   useEffect(() => {
     if (transaction?.stage !== "connecting" || !targetIsReady) return;
     const transactionId = transaction.id;
diff --git a/desktop/src/features/communities/useCommunityInit.test.mjs b/desktop/src/features/communities/useCommunityInit.test.mjs
index 20b08b8072..45e2b65f93 100644
--- a/desktop/src/features/communities/useCommunityInit.test.mjs
+++ b/desktop/src/features/communities/useCommunityInit.test.mjs
@@ -93,9 +93,12 @@ function neverSettles() {
 }
 
 function mount(communities) {
-  return renderHook((list) => useCommunityInit(b, "b", false, false, list), {
-    initialProps: communities,
-  });
+  return renderHook(
+    (list) => useCommunityInit(b, "b", null, false, false, list),
+    {
+      initialProps: communities,
+    },
+  );
 }
 
 test("useCommunityInit gates enterprise login before applying the community", async () => {
@@ -122,7 +125,7 @@ test("useCommunityInit gates enterprise login before applying the community", as
   try {
     const community = testCommunity();
     const hook = renderHook(() =>
-      useCommunityInit(community, "community-key", false, true),
+      useCommunityInit(community, "community-key", null, false, true),
     );
 
     await waitFor(() => assert.equal(hook.result.current.isReady, true));
@@ -182,7 +185,7 @@ test("useCommunityInit blocks community apply when enterprise login gate fails",
 
   try {
     const hook = renderHook(() =>
-      useCommunityInit(testCommunity(), "community-key", false, true),
+      useCommunityInit(testCommunity(), "community-key", null, false, true),
     );
 
     await waitFor(() =>
@@ -244,7 +247,8 @@ test("useCommunityInit cancels an owned pending enterprise authentication login
 
   try {
     const hook = renderHook(
-      ({ community, key }) => useCommunityInit(community, key, false, true),
+      ({ community, key }) =>
+        useCommunityInit(community, key, null, false, true),
       { initialProps: { community: communityA, key: "community-a-key" } },
     );
 
@@ -321,7 +325,7 @@ test("useCommunityInit waits for explicit enterprise browser consent", async ()
   try {
     const community = testCommunity({ name: "Block Buzz" });
     const hook = renderHook(() =>
-      useCommunityInit(community, "community-key", false, true),
+      useCommunityInit(community, "community-key", null, false, true),
     );
 
     await waitFor(() => assert.ok("enterpriseLogin" in hook.result.current));
@@ -392,7 +396,7 @@ test("useCommunityInit exposes authoritative enterprise profile when both identi
 
   try {
     const hook = renderHook(() =>
-      useCommunityInit(testCommunity(), "community-key", false, true),
+      useCommunityInit(testCommunity(), "community-key", null, false, true),
     );
     await waitFor(() => assert.ok("enterpriseLogin" in hook.result.current));
     await act(async () => {
diff --git a/desktop/src/features/communities/useCommunityInit.ts b/desktop/src/features/communities/useCommunityInit.ts
index 129d57ebb1..048ee35396 100644
--- a/desktop/src/features/communities/useCommunityInit.ts
+++ b/desktop/src/features/communities/useCommunityInit.ts
@@ -114,6 +114,7 @@ type CommunityInitResult =
       isReady: true;
       needsSetup: false;
       appliedKey: string;
+      initAttempt: number | null;
       identityPubkey: string | null;
       enterpriseProfile: EnterpriseProfileSeed | null;
     }
@@ -122,11 +123,17 @@ type CommunityInitResult =
       needsSetup: true;
       defaultRelayUrl: string;
     }
-  | { isReady: false; needsSetup: false; appliedKey: string | null }
   | {
       isReady: false;
       needsSetup: false;
       appliedKey: string | null;
+      initAttempt: number | null;
+    }
+  | {
+      isReady: false;
+      needsSetup: false;
+      appliedKey: string | null;
+      initAttempt: number | null;
       enterpriseLogin: {
         communityName: string;
         error: string | null;
@@ -138,6 +145,7 @@ type CommunityInitResult =
       isReady: false;
       needsSetup: false;
       appliedKey: string | null;
+      initAttempt: number | null;
       error: string;
     };
 
@@ -152,6 +160,7 @@ type CommunityInitResult =
 export function useCommunityInit(
   activeCommunity: Community | null,
   communityKey: string,
+  initAttempt: number | null,
   isSharedIdentity: boolean,
   suppressAutoConnect = false,
   communities: readonly Community[] = [],
@@ -161,6 +170,7 @@ export function useCommunityInit(
     isReady: false,
     needsSetup: false,
     appliedKey: null,
+    initAttempt: null,
   });
   const [enterpriseLoginPrompt, setEnterpriseLoginPrompt] = useState<{
     communityName: string;
@@ -200,6 +210,7 @@ export function useCommunityInit(
         isReady: false,
         needsSetup: false,
         appliedKey: null,
+        initAttempt: null,
         error: "Could not refresh avatar source permissions. Reload to retry.",
       });
     });
@@ -242,6 +253,7 @@ export function useCommunityInit(
                 isReady: false,
                 needsSetup: false,
                 appliedKey: null,
+                initAttempt: null,
                 error:
                   error instanceof Error
                     ? `Could not safely leave community: ${error.message}`
@@ -317,11 +329,14 @@ export function useCommunityInit(
       // Mark this community config as pending while it is applied to the
       // backend. App.tsx also checks appliedKey against the active communityKey,
       // which prevents rendering community-scoped UI for a new community until
-      // that exact config has finished applying.
+      // that exact config has finished applying. The init attempt is captured
+      // from the visible onboarding transaction so retry generations can fence
+      // stale completions for the same community config.
       setResult({
         isReady: false,
         needsSetup: false,
         appliedKey: communityKey,
+        initAttempt,
       });
 
       // Resolve the active signer before resetting singletons so
@@ -367,6 +382,7 @@ export function useCommunityInit(
               isReady: false,
               needsSetup: false,
               appliedKey: null,
+              initAttempt: null,
               error:
                 error instanceof Error
                   ? `Could not safely switch communities: ${error.message}`
@@ -418,6 +434,7 @@ export function useCommunityInit(
             isReady: false,
             needsSetup: false,
             appliedKey: communityKey,
+            initAttempt,
             error: errorMessage,
           });
         }
@@ -470,6 +487,7 @@ export function useCommunityInit(
             isReady: false,
             needsSetup: false,
             appliedKey: null,
+            initAttempt: null,
             error:
               error instanceof Error
                 ? error.message
@@ -506,6 +524,7 @@ export function useCommunityInit(
           isReady: true,
           needsSetup: false,
           appliedKey: communityKey,
+          initAttempt,
           identityPubkey,
           enterpriseProfile: enterpriseProfileForResult,
         });
@@ -538,6 +557,7 @@ export function useCommunityInit(
     isSharedIdentity,
     suppressAutoConnect,
     communityKey,
+    initAttempt,
   ]);
 
   if (enterpriseLoginPrompt !== null) {
@@ -545,6 +565,7 @@ export function useCommunityInit(
       isReady: false,
       needsSetup: false,
       appliedKey: activeCommunity ? communityKey : null,
+      initAttempt: activeCommunity ? initAttempt : null,
       enterpriseLogin: {
         ...enterpriseLoginPrompt,
         onCancel: cancelEnterpriseLogin,
diff --git a/desktop/src/features/onboarding/communityOnboarding.test.mjs b/desktop/src/features/onboarding/communityOnboarding.test.mjs
index e9645b191e..fd5802cce1 100644
--- a/desktop/src/features/onboarding/communityOnboarding.test.mjs
+++ b/desktop/src/features/onboarding/communityOnboarding.test.mjs
@@ -6,6 +6,7 @@ import {
   isTransactionStillConnecting,
   loadCommunityOnboardingTransaction,
   markCommunityOnboardingComplete,
+  nextCommunityOnboardingInitAttempt,
   resolveProfileCheckAction,
   shouldSkipCommunityOnboarding,
   startCommunityOnboarding,
@@ -130,6 +131,48 @@ test("acknowledgment persists but resets when the same-relay link reopens", () =
   assert.equal(reopened.acknowledged, undefined);
 });
 
+test("retry generation advances before stale same-community results can match", () => {
+  const storage = createMemoryStorage();
+  const transaction = startCommunityOnboarding(
+    { source: "first-community", relayUrl: "wss://relay.example" },
+    storage,
+  );
+  assert.equal(transaction.initAttempt, 0);
+
+  const retryAttempt = nextCommunityOnboardingInitAttempt(transaction);
+  const retried = updateCommunityOnboardingTransaction(
+    transaction,
+    { stage: "connecting", initAttempt: retryAttempt, error: undefined },
+    storage,
+  );
+
+  assert.equal(retryAttempt, 1);
+  assert.equal(retried.initAttempt, 1);
+  assert.equal(loadCommunityOnboardingTransaction(storage)?.initAttempt, 1);
+  assert.notEqual(retried.initAttempt, transaction.initAttempt);
+});
+
+test("same-relay ingress resumes with a fresh init generation", () => {
+  const storage = createMemoryStorage();
+  const transaction = startCommunityOnboarding(
+    { source: "deep-link-connect", relayUrl: "wss://relay.example" },
+    storage,
+  );
+  updateCommunityOnboardingTransaction(
+    transaction,
+    { stage: "corporate-profile", error: "Browser login was rejected" },
+    storage,
+  );
+
+  const reopened = startCommunityOnboarding(
+    { source: "deep-link-connect", relayUrl: "wss://relay.example" },
+    storage,
+  );
+
+  assert.equal(reopened.id, transaction.id);
+  assert.equal(reopened.initAttempt, 1);
+  assert.equal(reopened.error, undefined);
+});
 test("malformed persisted state is ignored and can be cleared", () => {
   const storage = createMemoryStorage({
     "buzz-community-onboarding-transaction.v1": '{"stage":"profile"}',
diff --git a/desktop/src/features/onboarding/communityOnboarding.tsx b/desktop/src/features/onboarding/communityOnboarding.tsx
index 87c928cc2d..bf3c1e5a28 100644
--- a/desktop/src/features/onboarding/communityOnboarding.tsx
+++ b/desktop/src/features/onboarding/communityOnboarding.tsx
@@ -36,6 +36,12 @@ export type CommunityOnboardingTransaction = {
   /** First-run screen that launched this transaction, restored on cancel. */
   firstCommunityPage?: FirstCommunityPage;
   stage: CommunityOnboardingStage;
+  /**
+   * Frontend-owned init generation. Incremented before a retry becomes a
+   * visible connecting transaction so late results from the previous init
+   * cannot mutate the retried transaction.
+   */
+  initAttempt?: number;
   relayUrl: string;
   inviteCode?: string;
   communityName: string;
@@ -62,6 +68,7 @@ export type CommunityOnboardingTransactionPatch = Partial<
   Pick<
     CommunityOnboardingTransaction,
     | "stage"
+    | "initAttempt"
     | "relayUrl"
     | "communityId"
     | "previousCommunityId"
@@ -167,6 +174,7 @@ export function startCommunityOnboarding(
       policyReceipt: input.policyReceipt ?? existing.policyReceipt,
       updatedAt: now.toISOString(),
       error: undefined,
+      initAttempt: (existing.initAttempt ?? 0) + 1,
       // A freshly opened link deserves fresh feedback — re-present the gate
       // even if a previous link for this relay was already dismissed.
       acknowledged: undefined,
@@ -189,11 +197,18 @@ export function startCommunityOnboarding(
     policyReceipt: input.policyReceipt,
     createdAt: timestamp,
     updatedAt: timestamp,
+    initAttempt: 0,
   };
   saveCommunityOnboardingTransaction(transaction, storage);
   return transaction;
 }
 
+export function nextCommunityOnboardingInitAttempt(
+  transaction: CommunityOnboardingTransaction,
+): number {
+  return (transaction.initAttempt ?? 0) + 1;
+}
+
 export function updateCommunityOnboardingTransaction(
   transaction: CommunityOnboardingTransaction,
   patch: CommunityOnboardingTransactionPatch,
diff --git a/desktop/src/features/onboarding/ui/CommunityOnboardingFlow.tsx b/desktop/src/features/onboarding/ui/CommunityOnboardingFlow.tsx
index d1997e7541..50d5b6d135 100644
--- a/desktop/src/features/onboarding/ui/CommunityOnboardingFlow.tsx
+++ b/desktop/src/features/onboarding/ui/CommunityOnboardingFlow.tsx
@@ -4,6 +4,7 @@ import { Plus, Users } from "lucide-react";
 
 import {
   markCommunityOnboardingComplete,
+  nextCommunityOnboardingInitAttempt,
   type CommunityOnboardingStage,
   useCommunityOnboarding,
 } from "@/features/onboarding/communityOnboarding";
@@ -274,11 +275,10 @@ export function CommunityOnboardingFlow({
   }, [clear, isEnteringStage]);
 
   const retry = () => {
+    if (!transaction) return;
     update({
-      stage: nextRetryStage(
-        transaction?.stage,
-        Boolean(transaction?.inviteCode),
-      ),
+      stage: nextRetryStage(transaction.stage, Boolean(transaction.inviteCode)),
+      initAttempt: nextCommunityOnboardingInitAttempt(transaction),
       error: undefined,
     });
     onRetry?.();