The Bug: Can not log in after switching guilds before leaving previous Guild Hall.
The Solution: See below.
[End editing by Faer]
A friend of mine joined a new guild -one without a guild hall- he had a an invite to his old guilds hall, he went to the old GH and logged out whilst still in there. After this he was unable to login with that character as GWs was convinced he was in the nonexistant GH of his new guild! Anet's Tech support btw said that it was due to connection problems with his ISP -Hahahaha just shows what they know


Hope this can help some of you who are having this problem.
ScorpiusX