I have a similar symptom although I don't know if it's for the same cause. My wireless connection will drop (disconnected from the access point) and never reconnect unless I manually ifdown/ifup the interface. I'm using wpa_supplicant but since this is a headless server, I'm not using Network Manager.
Ubuntu Server 14.04.3 LTS. Network controller: Qualcomm Atheros AR928X Wireless Network Adapter (PCI-Express) (rev 01) The syslog when this happens looks like this: Dec 11 22:52:48 beta3 kernel: [393250.537636] wlan0: deauthenticated from 8a:15:04:97:42:01 (Reason: 7) Dec 11 22:52:48 beta3 wpa_supplicant[1017]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:15:04:97:42:01 reason=7 Dec 11 22:52:48 beta3 wpa_supplicant[1017]: wlan0: SME: Trying to authenticate with 8a:15:04:97:42:01 (SSID='savioke' freq=2412 MHz) Dec 11 22:52:48 beta3 kernel: [393250.589435] cfg80211: Calling CRDA to update world regulatory domain Dec 11 22:52:48 beta3 wpa_supplicant[1017]: wlan0: CTRL-EVENT-SCAN-STARTED Dec 11 22:52:48 beta3 kernel: [393250.601392] cfg80211: World regulatory domain updated: Dec 11 22:52:48 beta3 kernel: [393250.601396] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) Dec 11 22:52:48 beta3 kernel: [393250.601398] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Dec 11 22:52:48 beta3 kernel: [393250.601399] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Dec 11 22:52:48 beta3 kernel: [393250.601401] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Dec 11 22:52:48 beta3 kernel: [393250.601402] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Dec 11 22:52:48 beta3 kernel: [393250.601403] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) After this point the wireless connection never comes up until I manually ifdown/ifup the interface. I've tried setting the regulatory domain and disabling ipv6 as described in http://askubuntu.com/questions/465848/frequent-deauthentication-from- wifi-reason-6-in-a-centrino-advanced-n-6230-r . My atheros card doesn't have an option to disable 802.11n ( http://askubuntu.com/questions/18897 /enable-only-802-11b-g-in-a-802-11n-in-atheros-wireless-card ). Should I create a new issue or is this similar enough to the OP's issue? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1399888 Title: Wireless network connection terminates and won't reconnect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1399888/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
