diff --git a/src/Ui/UiWebsocket.py b/src/Ui/UiWebsocket.py
index ef5c8c02..857de811 100644
--- a/src/Ui/UiWebsocket.py
+++ b/src/Ui/UiWebsocket.py
@@ -1093,6 +1093,6 @@ class UiWebsocket(object):
             logging.getLogger('').setLevel(logging.getLevelName(config.log_level))
 
         if key == "ip_external":
-            sys.modules["main"].file_server.portCheck()
+            gevent.spawn(sys.modules["main"].file_server.portCheck)
 
         self.response(to, "ok")