Where are the error messages that you are talking about? The 'dmesg' output doesn't look complete. In my case, error messages appear after the 'NET: Registered protocol family ..' line and read:
[ 823.768203] wlan0: association FAILED: peer sent Status Code 18 (Assoc denied: requesting STA doesnt support all data rates in basic set) For some reason, the 'acx' driver picks up a rate of 2M whereas the AP only offers 11M. The problem thus is not an NM problem in the first place but a driver problem. Available rates are obtained via 'iwlist': iwlist wlan0 rates wlan0 1 available bit-rates : 11 Mb/s Current Bit Rate=11 Mb/s After setting the rate to 11M by hand or an entry in 'interfaces', it's finally least possible to bring up the network with 'ifup wlan0'. -- ACX111/ACX100 based WLAN Card (DWL-G650+) wont connect to AP with wep key in edgy https://bugs.launchpad.net/bugs/70523 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