diff --git a/ui-ngx/src/app/core/ws/telemetry-websocket.service.ts b/ui-ngx/src/app/core/ws/telemetry-websocket.service.ts
index 0ac06210ba..18c26b0116 100644
--- a/ui-ngx/src/app/core/ws/telemetry-websocket.service.ts
+++ b/ui-ngx/src/app/core/ws/telemetry-websocket.service.ts
@@ -332,7 +332,7 @@ export class TelemetryWebsocketService implements TelemetryService {
   }
 
   private onClose(closeEvent: CloseEvent) {
-    if (closeEvent && closeEvent.code > 1001 && closeEvent.code !== 1006 && closeEvent.code !== 1012) {
+    if (closeEvent && closeEvent.code > 1001 && closeEvent.code !== 1006 && closeEvent.code !== 1012 && closeEvent.code !== 4500) {
       this.showWsError(closeEvent.code, closeEvent.reason);
     }
     this.isOpening = false;