Fix stopping signalreceiver

deluge/ui/signalreceiver.py

@@ -70,9 +70,13 @@ class SignalReceiver(
         """Shutdowns receiver thread"""
         self._shutdown = True
         # De-register with the daemon so it doesn't try to send us more signals
-        client.deregister_client()
-        client.force_call()
-        
+        try:
+            client.deregister_client()
+            client.force_call()
+        except:
+            pass
+        log.debug("Shutting down signalreceiver")
+
         # Hacky.. sends a request to our local receiver to ensure that it
         # shutdowns.. This is because handle_request() is a blocking call.
         receiver = xmlrpclib.ServerProxy("http://localhost:" + str(self.port),