Disconnecting issue

[Obs311]

This may sound a bit strange, but if I sign off of Graal by closing the window or such, I stay connected. I have asked a few people about it after I have logged off and they can still attack me, push me, etc.

Anyone have an idea? I suspect a port problem myself.

btw, that is why people usually see me on a server i never play, that is where I "log off".

Note: It appears to only be happening on my computer at home. Does not happen on laptop.