Limited To 2 Instances Of The Game At A Time.

Hello, starting last night I haven't been able to log in to more than 2 characters at the same time. The first 2 load just fine, but if I try to launch a third I can get all the way to the loading character screen, but then it gets stuck on downloading and eventually times out (error 3001 I believe).

Only thing I adjusted recently was my config file, which I've since replaced. Wasn't sure if there was any specific reason this would be happening. I can log off one character and then immediately log on to the third, so it's not isolated to a specific character, just limits me to 2 instances at a time.

Thanks for any help.

Are you using sandbox plugin? I had problems 2boxing with that so I just removed it