I've got the same problem on Hardy Alpha 4. from lspci:
05:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02) Now I'm using wicd and everything is ok. -- Network Manager cannot connect to a WEP 128 network https://bugs.launchpad.net/bugs/114605 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs