diff --git a/TestClient/MainForm.cs b/TestClient/MainForm.cs
index a43f6fe..b539520 100644
--- a/TestClient/MainForm.cs
+++ b/TestClient/MainForm.cs
@@ -100,11 +100,15 @@ namespace TestClient
         return;
       }
 
-      synchronizationContext.Post(new SendOrPostCallback(o =>
+      try
       {
-        lblClock.Text = timeNow.ToString("ddd dd.MM.yyyy HH:mm:ss");
-      }), "");
-
+        synchronizationContext.Post(new SendOrPostCallback(o =>
+        {
+          lblClock.Text = timeNow.ToString("ddd dd.MM.yyyy HH:mm:ss");
+        }), "");
+      }
+      catch
+      { }
       previousTime = timeNow;
     }