Comment 23 for bug 263963

Same problem here. But i even can't connect to access point without any encription.

Sep 28 16:13:38 xps-ubuntu NetworkManager: <info> Activation (wlan0/wireless): connection 'Coder' requires no security. No secrets needed.
Sep 28 16:13:38 xps-ubuntu NetworkManager: <info> Config: added 'ssid' value 'Coder'
Sep 28 16:13:38 xps-ubuntu NetworkManager: <info> Config: added 'scan_ssid' value '1'
Sep 28 16:13:38 xps-ubuntu NetworkManager: <info> Config: added 'key_mgmt' value 'NONE'
Sep 28 16:13:38 xps-ubuntu NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Sep 28 16:13:38 xps-ubuntu NetworkManager: <info> (wlan0): supplicant connection state change: 2 -> 0
Sep 28 16:13:38 xps-ubuntu NetworkManager: <info> Config: set interface ap_scan to 1
Sep 28 16:13:38 xps-ubuntu NetworkManager: <info> (wlan0): supplicant connection state change: 0 -> 2
Sep 28 16:13:53 xps-ubuntu NetworkManager: <info> wlan0: link timed out.
Sep 28 16:14:03 xps-ubuntu NetworkManager: <info> Activation (wlan0/wireless): association took too long, failing activation.
Sep 28 16:14:03 xps-ubuntu NetworkManager: <info> (wlan0): device state change: 5 -> 9
Sep 28 16:14:03 xps-ubuntu NetworkManager: <info> Activation (wlan0) failed for access point (Coder)
Sep 28 16:14:03 xps-ubuntu NetworkManager: <info> Marking connection 'Coder' invalid.
Sep 28 16:14:03 xps-ubuntu NetworkManager: <info> Activation (wlan0) failed.
Sep 28 16:14:03 xps-ubuntu NetworkManager: <info> (wlan0): device state change: 9 -> 3
Sep 28 16:14:03 xps-ubuntu NetworkManager: <info> (wlan0): deactivating device.
Sep 28 16:14:03 xps-ubuntu kernel: [ 1608.937345] wlan0: authenticate with AP 00:19:cb:8c:ae:9f
Sep 28 16:14:03 xps-ubuntu kernel: [ 1609.136077] wlan0: authenticate with AP 00:19:cb:8c:ae:9f
Sep 28 16:14:03 xps-ubuntu kernel: [ 1609.336043] wlan0: authenticate with AP 00:19:cb:8c:ae:9f
Sep 28 16:14:04 xps-ubuntu kernel: [ 1609.536047] wlan0: authentication with AP 00:19:cb:8c:ae:9f timed out