Add login failed message for server connect timeouts.

BulkPrinting/BulkPrinting/Utility.cs

             }
             catch (WebException ex)
             {
-                if (ex != null && ex.Response != null)
+                if (ex.Response != null)
                 {
                     var response = ex.Response;
                     var stream = response.GetResponseStream();
                         MessageBox.Show("Login Failed. Please try again.", "Login Failed", MessageBoxButtons.OK, MessageBoxIcon.Error);
                     }
                 }
+                else
+                {
+                    MessageBox.Show("The server did not return a response to the login request. Please try again later.", "Login Failed", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
                 return false;
             }
         }