I just want to add that I eventually did find the source of the problem for all of my issues. It appears that some new neighbors moved in to my building and began broadcasting their wireless on the same frequency as me. Luckily I am running the Tomato firmware on my router, so I was able to see the congestion and switch to a portion of the frequency that no one was on.
Once I did this, my connectivity issues with Ubuntu, and the speed issues with Windows' wireless disappeared. The symptoms were very strange, and without having access to any wireless monitoring tools like those included with DDWRT or Tomato, I would have never have found the source of the problem. So my suggestion it to log in to your respective routers and try changing the frequency/channel that your wireless broadcasts on; then try reconnecting. -- Intel PRO/Wireless 2200BG Fails to connect to any network https://bugs.launchpad.net/bugs/366217 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs