A bug?Follow

Recently on my fury I have been disconected while changeing zones for periods of time. For like half a hour I get sent back to character screen with no messages or anything, When I try to reconnect it says my character is already in the world, after around 15 seconds it lets me back in, in the new zone.
I think this is a bug because its only happened on my fury and seems to be at random points in time, one minute it works fine, the next Im haveing problems.

Basicly I'm asking if any one else is having this problems or know anything else about it.
This did start happening shortly after I installed the expansions if that means anything.