stuck on success...

I login on Lordaeron, I wait in queue. queue gets to 15 minutes or so, and then DISCONNECTED.

So I relog and get STUCK ON SUCCESS!. No matter witch realm I was previously trying to log into I get stuck. On the website it says realms are online, so What is the problem.. maybe my folder is bugged or something.

PS.This happens fairly often so I would really like help because this is so far the best private server I've not quite been able to play on.

Since you said that this often happens to you, I would recommend you checking both your computer and network.
When it comes to your computer, remove any applications that might cause you trouble or pause them during your gameplay (that is P2P client, Hamachi), create firewall exceptions for World of Warcraft and ensure that you got a good ping to Warmane (ping logon.warmane.com).
There are not that many things that you can check on your router, but try to have all World of Warcraft ports open.