What is the best way to deal with having an authenticator?

[Leonetienne]

Thanks for the reply!
I am indeed using two battle.net accounts. I am using ISBoxer. Also i just use one machine.
So you are saying that the problem is that my "authenticator token" loses its validity when loggin in a different battle.net account from my ip?

[MiRai]

So you are saying that the problem is that my "authenticator token" loses its validity when loggin in a different battle.net account from my ip?

Right, there's only one spot the game client puts it in the registry, but you can create more by virtualizing it, with ISBoxer.