If there was a problem listening on the configured TCP port, this window will appear with a short description of the error. Click the 'Select A Different Port' button to select another port number or to specify that no incoming connections can be received.

Clicking the 'Keep Trying' button will retry binding the specified port up to 15 times over serveral minutes. If the system still can not bind the specified port, this window will re-appear.

On most systems, it is preferable to select a port number between 2000 and 50000. A port below 1024 may return a 'permission denied' error unless you have administrative priviledges on the system.

For more information about receiving incoming connections, please refer to step 2 in the Tixati Optimizing Guide.