Network Login Expired

Daily now I get connection problems with certain towns, it changes every day. Sometimes the problem fixes itself after a while or if I restart gw.

I try to move to a town, the game connects and the loading bar fills up. But after a couple of seconds a login box shows up and ask me to reenter my loging info. This happends again and again.

I mostly had the problem with Eye of the North but after having the problem since gwen came out its not many towns that I havent had the problem in.