Disconnected after logging in

Hey guys so I found a video on how to setup a MU server Season 6 Episode 3.

https://www.youtube.com/watch?v=FD4CDLVhMG4

So thats the video. I followed everything. I wanna make it a offline server. So I put all LAN IP into where I should edit.

I can see the server, I can see the log in screen, But after putting username and password It automatically disconnects me :( I tried 2 accounts but it still the same

its not about account, you have bad SERIAL number on the clientside or on the serverside..

check it, it will be your problem, and after you entered good serial into the serverfile it will be okey.

tried it and it works thankyou