mindlessdream

Maybe you didn't see my comment, but - my ports are forwarded, I already checked through all that. It worked yesterday and I did not change the aforementioned setting. She has a Minecraft account, too. Thanks anyway.

"My ports are forwarded". That means I already checked through all that. Thanks for replying though

Because my vanilla server won't let people connect if utorrent isn't running with the listening port to 25565, so I assumed it's the same with Attack of the B-Team. Apologies, guess that's not how it works here.

I can join fine, but my friend suddenly can't join. This results in the server log: [SEVERE] Reached end of stream for /{IP address} 2014-03-29 14:35:52 [SEVERE] Reached end of stream for /{IP address} 2014-03-29 14:35:52 [INFO] {player} [/{IP address}] lost connection 2014-03-29 14:35:54 [SEVERE] Reached end of stream for /{IP address} 2014-03-29 14:36:01 [SEVERE] Reached end of stream for /{IP address) My friend also says she gets the message 'bad login'. My IP has not changed at all, my ports are fowarded, UTorrent is running, the server is running (Tried with Bteam.jar & Launch.bat) Mods are default, and I have not installed anything else. I may try deleting all the files and re-creating the server.

Did you give them your public IP address? Download uTorrent and change the connection port to 25565.