If your config file and external variables are setup correctly, it's most likely your client.php causing the problems.
I would recommend you get a new client.php
While we all know cracks is illegal, not many of us think we will ever get in trouble for it. This is not always the case anymore. There are more cases, especially in the US and the UK, where people are finding lawyers or police knocking at their door. Everything you download can be tracked, and...
I already know that, but why change the port? Why not use the default port; 3306?
Use that and get caught. Cracks are attempts to violate trademark, copyright and ownership of the software to enable people to get stuff for free that they should pay for. It's called software piracy and it is...