Well, i don't really know if anyone has posted before, i know google didn't find, so i'll be posting here...
The whole trick is in realmlist. Now, if you try to play on different server than your client is you'll have problems, but here is solution:
realmlist.wtf for those with US client and want to play on EU servers:
Code:
set realmlist eu.logon.worldofwarcraft.com
set patchlist us.version.worldofwarcraft.com
set realmlistbn ""
set portal eu
realmlist.wtf for those with UE client and want to play on US servers:
Code:
set realmlist us.logon.worldofwarcraft.com
set patchlist eu.version.worldofwarcraft.com
set realmlistbn ""
set portal us
What do those realmlists do now? It's simple. They use patch server that your client need and connect to servers you want to play on. I've figured out this today when i tried to apply the latest patch and it worked as a charm ^^