diff --git a/scripts/docker/install-sh-e2e/run.sh b/scripts/docker/install-sh-e2e/run.sh
index 81aa51cb182..ecc8af74cc5 100755
--- a/scripts/docker/install-sh-e2e/run.sh
+++ b/scripts/docker/install-sh-e2e/run.sh
@@ -24,7 +24,6 @@ AGENT_TURN_TIMEOUT_SECONDS="${OPENCLAW_INSTALL_E2E_AGENT_TURN_TIMEOUT_SECONDS:-6
 export NPM_CONFIG_PREFIX="${NPM_CONFIG_PREFIX:-$HOME/.npm-global}"
 mkdir -p "$NPM_CONFIG_PREFIX"
 export PATH="$NPM_CONFIG_PREFIX/bin:$PATH"
-export OPENCLAW_DISABLE_BONJOUR="${OPENCLAW_DISABLE_BONJOUR:-1}"
 
 if [[ "$MODELS_MODE" != "both" && "$MODELS_MODE" != "openai" && "$MODELS_MODE" != "anthropic" ]]; then
   echo "ERROR: OPENCLAW_E2E_MODELS must be one of: both|openai|anthropic" >&2
diff --git a/src/infra/unhandled-rejections.fatal-detection.test.ts b/src/infra/unhandled-rejections.fatal-detection.test.ts
index f010dfbbd52..6ee3a604010 100644
--- a/src/infra/unhandled-rejections.fatal-detection.test.ts
+++ b/src/infra/unhandled-rejections.fatal-detection.test.ts
@@ -196,6 +196,32 @@ describe("installUnhandledRejectionHandler - fatal detection", () => {
       );
     });
 
+    it("does not exit on known Bonjour dependency failures", () => {
+      const bonjourCases: unknown[] = [
+        new Error("CIAO ANNOUNCEMENT CANCELLED"),
+        new Error("CIAO PROBING CANCELLED"),
+        Object.assign(
+          new Error("Reached illegal state! IPV4 address change from defined to undefined!"),
+          { name: "AssertionError" },
+        ),
+        Object.assign(
+          new Error(
+            "IP address version must match. Netmask cannot have a version different from the address!",
+          ),
+          { name: "AssertionError" },
+        ),
+      ];
+
+      for (const bonjourErr of bonjourCases) {
+        expectExitCodeFromUnhandled(bonjourErr, []);
+      }
+
+      expect(consoleWarnSpy).toHaveBeenCalledWith(
+        "[openclaw] Non-fatal unhandled rejection (continuing):",
+        expect.stringContaining("CIAO ANNOUNCEMENT CANCELLED"),
+      );
+    });
+
     it("exits on generic errors without code", () => {
       const genericErr = new Error("Something went wrong");
 
diff --git a/src/infra/unhandled-rejections.ts b/src/infra/unhandled-rejections.ts
index 219fda7a10f..c2c89702c80 100644
--- a/src/infra/unhandled-rejections.ts
+++ b/src/infra/unhandled-rejections.ts
@@ -116,6 +116,12 @@ const TRANSIENT_SQLITE_MESSAGE_SNIPPETS = [
   "disk i/o error",
 ];
 
+const CIAO_CANCELLATION_MESSAGE_RE = /^CIAO (?:ANNOUNCEMENT|PROBING) CANCELLED\b/u;
+const CIAO_INTERFACE_ASSERTION_MESSAGE_RE =
+  /REACHED ILLEGAL STATE!?\s+IPV4 ADDRESS CHANGE FROM (?:DEFINED TO UNDEFINED|UNDEFINED TO DEFINED)!?/u;
+const CIAO_NETMASK_ASSERTION_MESSAGE_RE =
+  /IP ADDRESS VERSION MUST MATCH\.\s+NETMASK CANNOT HAVE A VERSION DIFFERENT FROM THE ADDRESS!?/u;
+
 function hasSqliteSignal(err: unknown): boolean {
   if (!err || typeof err !== "object") {
     return false;
@@ -335,8 +341,46 @@ export function isTransientSqliteError(err: unknown): boolean {
   return false;
 }
 
+export function isKnownBonjourDependencyError(err: unknown): boolean {
+  if (!err) {
+    return false;
+  }
+
+  for (const candidate of collectNestedUnhandledErrorCandidates(err)) {
+    const rawMessage =
+      candidate && typeof candidate === "object"
+        ? (candidate as { message?: unknown }).message
+        : undefined;
+    const message =
+      typeof candidate === "string"
+        ? candidate
+        : candidate && typeof candidate === "object"
+          ? typeof rawMessage === "string"
+            ? rawMessage
+            : ""
+          : "";
+    const normalized = message.trim().toUpperCase();
+    if (!normalized) {
+      continue;
+    }
+    if (
+      CIAO_CANCELLATION_MESSAGE_RE.test(normalized) ||
+      CIAO_INTERFACE_ASSERTION_MESSAGE_RE.test(normalized) ||
+      CIAO_NETMASK_ASSERTION_MESSAGE_RE.test(normalized)
+    ) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
 export function isTransientUnhandledRejectionError(err: unknown): boolean {
-  return isTransientNetworkError(err) || isTransientSqliteError(err);
+  return (
+    isTransientNetworkError(err) ||
+    isTransientSqliteError(err) ||
+    isKnownBonjourDependencyError(err)
+  );
 }
 
 export function registerUnhandledRejectionHandler(handler: UnhandledRejectionHandler): () => void {
diff --git a/test/scripts/test-install-sh-docker.test.ts b/test/scripts/test-install-sh-docker.test.ts
index 1f5b42f4cfb..288a7b4a547 100644
--- a/test/scripts/test-install-sh-docker.test.ts
+++ b/test/scripts/test-install-sh-docker.test.ts
@@ -3,7 +3,6 @@ import { describe, expect, it } from "vitest";
 
 const SCRIPT_PATH = "scripts/test-install-sh-docker.sh";
 const SMOKE_RUNNER_PATH = "scripts/docker/install-sh-smoke/run.sh";
-const E2E_RUNNER_PATH = "scripts/docker/install-sh-e2e/run.sh";
 const BUN_GLOBAL_SMOKE_PATH = "scripts/e2e/bun-global-install-smoke.sh";
 const INSTALL_SMOKE_WORKFLOW_PATH = ".github/workflows/install-smoke.yml";
 const RELEASE_CHECKS_WORKFLOW_PATH = ".github/workflows/openclaw-release-checks.yml";
@@ -129,14 +128,6 @@ describe("install-sh smoke runner", () => {
   });
 });
 
-describe("install-sh e2e runner", () => {
-  it("disables Bonjour for Docker loopback gateway checks", () => {
-    const script = readFileSync(E2E_RUNNER_PATH, "utf8");
-
-    expect(script).toContain('export OPENCLAW_DISABLE_BONJOUR="${OPENCLAW_DISABLE_BONJOUR:-1}"');
-  });
-});
-
 describe("bun global install smoke", () => {
   it("packs the current tree and verifies image-provider discovery through Bun", () => {
     const script = readFileSync(BUN_GLOBAL_SMOKE_PATH, "utf8");