That's very weird. The last messages before disconnection is the following: Sep 21 07:27:37 rick-qsus NetworkManager[894]: <info> Activation (wlan0) Stage 4 of 5 (IP6 Configure Timeout) complete. Sep 21 07:56:15 rick-qsus wpa_supplicant[901]: CTRL-EVENT-DISCONNECTED bssid=5c:33:8e:bd:99:70 reason=4 Sep 21 07:56:16 rick-qsus kernel: [ 1757.042804] cfg80211: All devices are disconnected, going to restore regulatory settings
Where the actual disconnection is an event from wpa_supplicant which translates to: #define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4 I can only assume there still happens to be some traffic on the link during that thirty minutes (or you may want to check the wireless AP's settings, in case there is some wireless settings that is set to 1800 seconds.), but as a test, could you check if constantly pinging the gateway keeps the interface up longer? Something else to have done while testing is to enable debugging logs in wpa_supplicant, which might tell us more: 1) edit /usr/share/dbus-1/system-services/fi.w1.wpa_supplicant1.service, add '-d' to the parameters passed to wpasupplicant 2) stop network-manager 3) kill wpasupplicant 4) start network-manager Starting NetworkManager will start wpasupplicant automatically; with the logs still going to /var/log/syslog. Once the bug is reproduce (or not), please attach /var/log/syslog to this bug report again (after making sure it doesn't include passwords in the debugging logs). ** Changed in: network-manager (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/855262 Title: Network Manager drops my wifi connection (Ateros) every 30 minutes or so To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/855262/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs