It's not just you. Been a rash of flakiness with the server recently. Hopefully, Tom can fix it. We hate missing out on our BM 
With this said, if you can't access Battlemaster, go to IRC to irc.quakenet.org and go to the channel #battlemaster. You can probably found out information about if it's down or it's just you.
Try webchat.quakenet.org if you don't have an IRC client
