diff --git a/packages/adapters/openclaw-gateway/src/server/execute.ts b/packages/adapters/openclaw-gateway/src/server/execute.ts
index eaacbd33..f1c85c11 100644
--- a/packages/adapters/openclaw-gateway/src/server/execute.ts
+++ b/packages/adapters/openclaw-gateway/src/server/execute.ts
@@ -605,6 +605,7 @@ class GatewayWsClient {
       this.resolveChallenge = resolve;
       this.rejectChallenge = reject;
     });
+    this.challengePromise.catch(() => {});
   }
 
   async connect(