I believe a similar thing happened to me when I changed from using WEP to WPA on my access point.
** Changed in: network-manager (Ubuntu) Importance: Undecided => Medium Status: New => Confirmed ** Changed in: network-manager (Ubuntu) Importance: Medium => Low -- [Gutsy] Unable to connect to WPA2 if the AP was previously using WPA https://bugs.launchpad.net/bugs/140422 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