Situation: When configuring the server path, enter the port and click on the Test Connection button, the following message Invalid port number. Cannot contain letters and the number must not be less than 0 or greater than 65535 and the port number is returned to the previous value.
Cause: If the number entered is less than 0 or greater than 65535, or contains letters, it will not be possible to modify the port, since the port number is invalid.
1. Enter a valid value between 0 and 65535 in the Port field.