AirDroid 2 multiple problems

I have trouble authenticating, then it never again prompts for authentication and just tries to connect to my phone and fails. I see no way to log out of v2.airdroid.com.
At work I think a firewall is blocking ws://ws.airdroid.com because you're using port 8090. Many corporates will block such ports.

However, at home I still cannot log in via v2. I have a Samsung S3 and the beta pkg on my phone. At one point I managed it right at the start, but then it kept being disconnected by the device.

I know it's beta, but it just seems completely unusable - for me at least!!

I am having the same problem.
I'm signed in on my phone (Sony Ericsson Xperia Arc) with the beta apk however when I go to the v2 airdroid webpage there is no way for me to sign out, sign in or directly connect with my phone. I had it working at the beginning, like Josh here, but then once I killed the program and exited I could not re-enter to use airdroid.

I'd really like this to be fixed, but it is a beta.