[Lucky™]

Hey there guys. I do have question to make sure. Some of the players (problem exists even they create new accounts) are getting kicked out of the server for some lame reasons such as 'Wrong server password', 'Server is full' or sometimes 'You are banned from this'. But still he can chat and do any stuff (after like 10 secs, he get kicked)

http://oi62.tinypic.com/vertcg.jpg

What could be the problem? is something wrong with the script or?