I managed to reinstall the 2.6.24-16 kernel and with this one I have no problem connecting to the access point, so I can confirm that the problem occurred with one of the -17, -18, or -19 kernel.
-- [Hardy] Unable to connect to WEP access point since recent kernel upgrade https://bugs.launchpad.net/bugs/243750 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
