diff --git a/CHANGELOG.md b/CHANGELOG.md
index 712367f01264..711820fd8f5f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- **External supervisor restart health:** accept device-identity policy closes only when the replacement gateway lock and listener PID agree, preventing OCM-managed restarts from timing out after a successful handoff. Thanks @shakkernerd.
 - **ACPX cleanup process inspection:** bound host process-table reads so stalled `ps` calls cannot hang gateway startup or session cleanup while retaining fail-closed ownership checks. Thanks @Alix-007.
 - **Cron lifecycle conflict retries:** preserve execution-phase retry decisions across scheduled, manual, and startup-recovered runs so post-execution claim conflicts cannot replay completed messages or tools. Fixes #108428. Thanks @yetval.
 - **Discord gateway metadata deadline:** carry the existing lookup deadline through DNS and proxy preflight, request headers, and response bodies so stalled gateway startup aborts cleanly. (#104580) Thanks @hugenshen.
diff --git a/src/cli/daemon-cli/restart-health.test.ts b/src/cli/daemon-cli/restart-health.test.ts
index 7b3b3294e6e0..f546aaf9d314 100644
--- a/src/cli/daemon-cli/restart-health.test.ts
+++ b/src/cli/daemon-cli/restart-health.test.ts
@@ -1025,6 +1025,49 @@ describe("inspectGatewayRestart", () => {
     expect(sleep).toHaveBeenCalledTimes(1);
   });
 
+  it.each([
+    { listenerPid: 4300, healthy: true },
+    { listenerPid: 4400, healthy: false },
+  ])(
+    "accepts device identity policy close only for the verified replacement listener",
+    async ({ listenerPid, healthy }) => {
+      inspectPortUsage.mockResolvedValue({
+        port: 18789,
+        status: "busy",
+        listeners: [{ pid: listenerPid, commandLine: "openclaw-gateway" }],
+        hints: [],
+      });
+      probeGateway.mockResolvedValue({
+        ok: false,
+        close: { code: 1008, reason: "device identity required" },
+      });
+      const previousLockIdentity = {
+        pid: 4200,
+        ownerId: "gateway-owner-old",
+        createdAt: "2026-07-16T12:00:00.000Z",
+        port: 18789,
+      };
+      readActiveGatewayLockIdentity.mockResolvedValueOnce(previousLockIdentity).mockResolvedValue({
+        ...previousLockIdentity,
+        pid: 4300,
+        ownerId: "gateway-owner-new",
+        createdAt: "2026-07-16T12:00:01.000Z",
+      });
+
+      const { waitForGatewayHealthyListener } = await import("./restart-health.js");
+      const snapshot = await waitForGatewayHealthyListener({
+        port: 18789,
+        previousLockIdentity,
+        attempts: 1,
+        delayMs: 500,
+      });
+
+      expect(snapshot.healthy).toBe(healthy);
+      expect(inspectPortUsage).toHaveBeenCalledTimes(1);
+      expect(probeGateway).toHaveBeenCalledTimes(1);
+    },
+  );
+
   it("bounds replacement health after an indefinite previous-owner wait", async () => {
     inspectPortUsage.mockResolvedValue({
       port: 18789,
diff --git a/src/cli/daemon-cli/restart-health.ts b/src/cli/daemon-cli/restart-health.ts
index a0704d07cf6b..6845694b8d33 100644
--- a/src/cli/daemon-cli/restart-health.ts
+++ b/src/cli/daemon-cli/restart-health.ts
@@ -247,6 +247,7 @@ async function confirmGatewayReachable(params: {
   includeHealthDetails?: boolean;
   auth?: GatewayRestartProbeAuth;
   env?: NodeJS.ProcessEnv;
+  allowDeviceIdentityRequired?: boolean;
 }): Promise<GatewayReachability> {
   const token = normalizeOptionalString(params.auth?.token ?? process.env.OPENCLAW_GATEWAY_TOKEN);
   const password = normalizeOptionalString(
@@ -262,6 +263,9 @@ async function confirmGatewayReachable(params: {
   const reachedGateway =
     probe.ok ||
     looksLikeAuthClose(probe.close?.code, probe.close?.reason) ||
+    (params.allowDeviceIdentityRequired === true &&
+      probe.close?.code === 1008 &&
+      normalizeLowercaseStringOrEmpty(probe.close.reason) === "device identity required") ||
     (probe.connectLatencyMs != null &&
       probe.server?.version != null &&
       probe.auth.capability === "connected_no_operator_scope");
@@ -298,6 +302,7 @@ async function resolveGatewayRestartProbeAuth(
 async function inspectGatewayPortHealth(params: {
   port: number;
   auth?: GatewayRestartProbeAuth;
+  expectedListenerPid?: number;
 }): Promise<GatewayPortHealthSnapshot> {
   let portUsage: PortUsage;
   try {
@@ -314,12 +319,23 @@ async function inspectGatewayPortHealth(params: {
 
   let healthy = false;
   if (portUsage.status === "busy") {
+    const expectedListenerPid = params.expectedListenerPid;
+    const listenerOwnershipVerified =
+      expectedListenerPid !== undefined &&
+      portUsage.listeners.length > 0 &&
+      portUsage.listeners.every((listener) =>
+        listenerOwnedByRuntimePid({
+          listener,
+          runtimePid: expectedListenerPid,
+        }),
+      );
     try {
       healthy = (
         await confirmGatewayReachable({
           port: params.port,
           auth: params.auth,
           env: process.env,
+          allowDeviceIdentityRequired: listenerOwnershipVerified,
         })
       ).reachable;
     } catch {
@@ -662,6 +678,7 @@ export async function waitForGatewayHealthyListener(params: {
       });
 
   let attempt = 0;
+  let expectedListenerPid: number | undefined;
   if (previousLockIdentity) {
     const replacement = await waitForGatewayLockReplacement({
       previousLockIdentity,
@@ -673,9 +690,11 @@ export async function waitForGatewayHealthyListener(params: {
       return snapshot;
     }
     attempt = replacement.attemptsUsed;
+    expectedListenerPid = replacement.lockIdentity.pid;
     snapshot = await inspectGatewayPortHealth({
       port: params.port,
       auth: probeAuth,
+      expectedListenerPid,
     });
   }
 
@@ -688,6 +707,7 @@ export async function waitForGatewayHealthyListener(params: {
     snapshot = await inspectGatewayPortHealth({
       port: params.port,
       auth: probeAuth,
+      expectedListenerPid,
     });
     if (snapshot.healthy) {
       return snapshot;
diff --git a/src/cli/daemon-cli/restart-lock-replacement.test.ts b/src/cli/daemon-cli/restart-lock-replacement.test.ts
index 839e0e3324bf..a4b1f6cf2278 100644
--- a/src/cli/daemon-cli/restart-lock-replacement.test.ts
+++ b/src/cli/daemon-cli/restart-lock-replacement.test.ts
@@ -33,12 +33,15 @@ describe("waitForGatewayLockReplacement", () => {
   });
 
   it("checks for a replacement after the final bounded delay", async () => {
-    readActiveGatewayLockIdentity.mockResolvedValueOnce(previousLockIdentity).mockResolvedValue({
+    const replacementLockIdentity = {
       ...previousLockIdentity,
       pid: 4300,
       ownerId: "gateway-owner-new",
       createdAt: "2026-07-16T12:00:01.000Z",
-    });
+    };
+    readActiveGatewayLockIdentity
+      .mockResolvedValueOnce(previousLockIdentity)
+      .mockResolvedValue(replacementLockIdentity);
 
     const { waitForGatewayLockReplacement } = await import("./restart-lock-replacement.js");
     await expect(
@@ -48,7 +51,11 @@ describe("waitForGatewayLockReplacement", () => {
         delayMs: 500,
         waitIndefinitelyForPreviousOwner: false,
       }),
-    ).resolves.toStrictEqual({ status: "replacement", attemptsUsed: 1 });
+    ).resolves.toStrictEqual({
+      status: "replacement",
+      attemptsUsed: 1,
+      lockIdentity: replacementLockIdentity,
+    });
     expect(readActiveGatewayLockIdentity).toHaveBeenCalledTimes(2);
     expect(sleep).toHaveBeenCalledTimes(1);
   });
@@ -72,15 +79,16 @@ describe("waitForGatewayLockReplacement", () => {
   });
 
   it("does not treat a transient lock read failure as owner release", async () => {
+    const replacementLockIdentity = {
+      ...previousLockIdentity,
+      pid: 4300,
+      ownerId: "gateway-owner-new",
+      createdAt: "2026-07-16T12:00:01.000Z",
+    };
     readActiveGatewayLockIdentity
       .mockRejectedValueOnce(new Error("transient lock read failure"))
       .mockResolvedValueOnce(previousLockIdentity)
-      .mockResolvedValue({
-        ...previousLockIdentity,
-        pid: 4300,
-        ownerId: "gateway-owner-new",
-        createdAt: "2026-07-16T12:00:01.000Z",
-      });
+      .mockResolvedValue(replacementLockIdentity);
 
     const { waitForGatewayLockReplacement } = await import("./restart-lock-replacement.js");
     await expect(
@@ -90,7 +98,11 @@ describe("waitForGatewayLockReplacement", () => {
         delayMs: 500,
         waitIndefinitelyForPreviousOwner: true,
       }),
-    ).resolves.toStrictEqual({ status: "replacement", attemptsUsed: 0 });
+    ).resolves.toStrictEqual({
+      status: "replacement",
+      attemptsUsed: 0,
+      lockIdentity: replacementLockIdentity,
+    });
     expect(readActiveGatewayLockIdentity).toHaveBeenCalledTimes(3);
     expect(sleep).toHaveBeenCalledTimes(2);
   });
diff --git a/src/cli/daemon-cli/restart-lock-replacement.ts b/src/cli/daemon-cli/restart-lock-replacement.ts
index e96bec054776..7a9eb3848449 100644
--- a/src/cli/daemon-cli/restart-lock-replacement.ts
+++ b/src/cli/daemon-cli/restart-lock-replacement.ts
@@ -6,7 +6,11 @@ import {
 import { sleep } from "../../utils.js";
 
 type GatewayLockReplacementWaitResult =
-  | { status: "replacement"; attemptsUsed: number }
+  | {
+      status: "replacement";
+      attemptsUsed: number;
+      lockIdentity: GatewayLockIdentity;
+    }
   | { status: "timeout" };
 
 export async function waitForGatewayLockReplacement(params: {
@@ -57,7 +61,7 @@ export async function waitForGatewayLockReplacement(params: {
       currentLockIdentity &&
       !isSameGatewayLockIdentity(params.previousLockIdentity, currentLockIdentity)
     ) {
-      return { status: "replacement", attemptsUsed };
+      return { status: "replacement", attemptsUsed, lockIdentity: currentLockIdentity };
     }
 
     if (attemptsUsed >= params.attempts) {