Hi, I'm facing the same issue with a slightly different device: "ID 0b05:17ab ASUSTek Computer, Inc. USB-N13 802.11n Network Adapter (rev. B1) [Realtek RTL8192CU]". I'm also using Ubuntu, Saucy: "Linux desktop 3.11.0-7-generic #13-Ubuntu SMP Tue Sep 10 20:55:38 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux". Sep 15 19:59:07 desktop NetworkManager[791]: <info> Config: added 'ssid' value 'MyWiFi' Sep 15 19:59:07 desktop NetworkManager[791]: <info> Config: added 'scan_ssid' value '1' Sep 15 19:59:07 desktop NetworkManager[791]: <info> Config: added 'key_mgmt' value 'WPA-PSK' Sep 15 19:59:07 desktop NetworkManager[791]: <info> Config: added 'psk' value '<omitted>' Disconnect/reconnect cycle every 20-30 seconds. Disconnect to fail every few minutes. Sep 15 20:07:18 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:07:19 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed Sep 15 20:07:50 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: completed -> disconnected Sep 15 20:07:50 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:07:50 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:07:50 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> associating Sep 15 20:07:51 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associating -> associated Sep 15 20:07:51 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:07:52 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed Sep 15 20:08:02 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: completed -> disconnected Sep 15 20:08:02 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:08:02 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:08:03 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> disconnected Sep 15 20:08:03 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:08:04 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:08:04 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> associating Sep 15 20:08:04 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associating -> associated Sep 15 20:08:04 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:08:16 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> disconnected Sep 15 20:08:16 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> inactive [FAILED JUST HERE] Sep 15 20:08:29 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: inactive -> scanning Sep 15 20:08:29 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:08:30 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> associating Sep 15 20:08:30 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associating -> associated Sep 15 20:08:30 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:08:30 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed Sep 15 20:09:06 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: completed -> disconnected Sep 15 20:09:06 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> associating Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associating -> associated Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed Sep 15 20:09:26 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: completed -> disconnected Sep 15 20:09:26 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:09:27 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:09:27 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> disconnected Sep 15 20:09:27 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:09:28 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:09:28 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> disconnected Sep 15 20:09:28 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> associating Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associating -> associated Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed Sep 15 20:09:42 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: completed -> disconnected Sep 15 20:09:42 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:09:43 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:09:43 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> disconnected Sep 15 20:09:43 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> associating Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associating -> associated Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed Sep 15 20:09:58 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: completed -> disconnected Sep 15 20:09:58 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:09:59 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:09:59 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> disconnected Sep 15 20:09:59 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> associating Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associating -> associated Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed Sep 15 20:10:16 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: completed -> disconnected Sep 15 20:10:16 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:10:17 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:10:17 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> disconnected Sep 15 20:10:17 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> scanning Sep 15 20:10:24 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: scanning -> authenticating Sep 15 20:10:24 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: authenticating -> associating Sep 15 20:10:24 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associating -> associated Sep 15 20:10:24 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Sep 15 20:10:30 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> disconnected Sep 15 20:10:30 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: disconnected -> inactive [FAILS AGAIN HERE] The interesting part is probably: Sep 15 20:10:30 desktop kernel: [ 4778.434695] wlan0: Connection to AP 9c:c7:a6:1c:dc:a5 lost Sep 15 20:10:30 desktop wpa_supplicant[6415]: wlan0: WPA: 4-Way Handshake failed - pre-shared key may be incorrect Sep 15 20:10:30 desktop wpa_supplicant[6415]: wlan0: CTRL-EVENT-DISCONNECTED bssid=9c:c7:a6:1c:dc:a5 reason=4 Sep 15 20:10:30 desktop kernel: [ 4778.454580] cfg80211: Calling CRDA to update world regulatory domain Sep 15 20:10:30 desktop NetworkManager[791]: <info> (wlan0): supplicant interface state: 4-way handshake -> disconnected Sep 15 20:10:30 desktop NetworkManager[791]: <info> Activation (wlan0/wireless): disconnected during association, asking for new key. Sep 15 20:10:30 desktop NetworkManager[791]: <info> (wlan0): device state change: activated -> need-auth (reason 'supplicant-disconnect') [100 60 8] Let me know if there is anything I can do to help Olivier -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html