I had a similar problem with WEP not working. I found a work around by switching my router to use WEP (Shared) instead of WEP (Open). I'm using Ubuntu 6.06.
-- ipw2200/Intel 2915abg Wireless 128-bit WEP doesn't work, must set up manually https://launchpad.net/bugs/67876 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
