Rubberbanding in game

For some reason I am rubberbanding alot on the WoTLK realms. I will run and my character will just shoot backwards about 20 feet in game and I will get stuck and unable to move. I have even logged onto other servers that I play and it does not happen at all. It is not lag because my ping is a constant 200 on all servers including Lordaeron and Icecrown. A main point is when getting off the Tram I will just shoot back onto it and get carried back to Stormwind or Ironforge. Could it be possible that it is client with Warmane servers or something on Warmanes side, Like I said I have tested it on many servers and everything runs perfectly fine.