After a while waiting for the server there comes a timeout message. This time (default=20 seconds) can be changed
Referring to manual:
This variable lets you determine how many seconds (from 0 to 32767) the client waits for a response from the server. If the client receives no response from the server in the specified time period, the following message box appears:
The remote host is not responding.
Press OK to close this program.
Press Cancel to wait another %s seconds.
where "%s" is the value of TC_SERVER_TIMEOUT. The default value is "20".