I have a iwlwifi-3160 card, kernel 4.2.6 on Debian Jessie. I am using iwlwifi-3160-15.ucode.
Unfortunately, killing wpa_supplicant does not work.


$ dmesg
....
[ 2760.510825] wlan0: authenticate with e8:04:62:22:0d:fc
[ 2760.513750] wlan0: send auth to e8:04:62:22:0d:fc (try 1/3)
[ 2760.515343] wlan0: authenticated
[ 2760.517340] wlan0: associate with e8:04:62:22:0d:fc (try 1/3)
[ 2760.520482] wlan0: RX AssocResp from e8:04:62:22:0d:fc (capab=0x11 status=0 aid=7)
[ 2760.521811] wlan0: associated
[ 2760.523836] cfg80211: Regulatory domain changed to country: IT
[ 2760.523839] cfg80211:  DFS Master region: ETSI
[ 2760.523840] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2760.523842] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 2760.523843] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 2760.523844] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 2760.523845] cfg80211:   (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2700 mBm), (0 s)
[ 2760.523847] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 2760.594729] wlan0: Limiting TX power to 23 (23 - 0) dBm as advertised by e8:04:62:22:0d:fc
[ 2762.559116] wlan0: deauthenticating from e8:04:62:22:0d:fc by local choice (Reason: 3=DEAUTH_LEAVING)
[ 2762.572531] cfg80211: World regulatory domain updated:
[ 2762.572536] cfg80211:  DFS Master region: unset
[ 2762.572538] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2762.572542] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 2762.572544] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 2762.572547] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 2762.572549] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 2762.572552] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 2762.572555] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 2762.572557] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 2762.572559] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 2785.544375] wlan0: authenticate with e8:04:62:22:0d:fc
[ 2785.547186] wlan0: send auth to e8:04:62:22:0d:fc (try 1/3)
[ 2785.548746] wlan0: authenticated
[ 2785.549531] wlan0: associate with e8:04:62:22:0d:fc (try 1/3)
[ 2785.653647] wlan0: associate with e8:04:62:22:0d:fc (try 2/3)
[ 2785.757736] wlan0: associate with e8:04:62:22:0d:fc (try 3/3)
[ 2785.861851] wlan0: association with e8:04:62:22:0d:fc timed out
[ 2795.990093] wlan0: authenticate with e8:04:62:22:0d:f3
[ 2795.992596] wlan0: send auth to e8:04:62:22:0d:f3 (try 1/3)
[ 2795.993970] wlan0: authenticated
[ 2795.997986] wlan0: associate with e8:04:62:22:0d:f3 (try 1/3)
[ 2796.102072] wlan0: associate with e8:04:62:22:0d:f3 (try 2/3)
[ 2796.206172] wlan0: associate with e8:04:62:22:0d:f3 (try 3/3)
[ 2796.310215] wlan0: association with e8:04:62:22:0d:f3 timed out
[ 2810.562856] wlan0: authenticate with e8:04:62:22:0d:fc
[ 2810.565372] wlan0: send auth to e8:04:62:22:0d:fc (try 1/3)
[ 2810.565997] wlan0: authenticated
[ 2810.569756] wlan0: associate with e8:04:62:22:0d:fc (try 1/3)
[ 2810.673891] wlan0: associate with e8:04:62:22:0d:fc (try 2/3)
[ 2810.777942] wlan0: associate with e8:04:62:22:0d:fc (try 3/3)
[ 2810.882062] wlan0: association with e8:04:62:22:0d:fc timed out
[ 2821.000284] wlan0: authenticate with e8:04:62:22:0d:f3
[ 2821.003351] wlan0: send auth to e8:04:62:22:0d:f3 (try 1/3)
[ 2821.004749] wlan0: authenticated
[ 2821.006181] wlan0: associate with e8:04:62:22:0d:f3 (try 1/3)
[ 2821.110237] wlan0: associate with e8:04:62:22:0d:f3 (try 2/3)
[ 2821.214324] wlan0: associate with e8:04:62:22:0d:f3 (try 3/3)
[ 2821.318487] wlan0: association with e8:04:62:22:0d:f3 timed out
[ 2835.596348] wlan0: authenticate with e8:04:62:22:0d:fc
[ 2835.599173] wlan0: send auth to e8:04:62:22:0d:fc (try 1/3)
[ 2835.599816] wlan0: authenticated
[ 2835.601954] wlan0: associate with e8:04:62:22:0d:fc (try 1/3)
[ 2835.604115] wlan0: RX AssocResp from e8:04:62:22:0d:fc (capab=0x11 status=0 aid=7)
[ 2835.605004] wlan0: associated
[ 2835.607325] cfg80211: Regulatory domain changed to country: IT
[ 2835.607329] cfg80211:  DFS Master region: ETSI
[ 2835.607331] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2835.607334] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 2835.607337] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 2835.607340] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 2835.607342] cfg80211:   (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2700 mBm), (0 s)
[ 2835.607344] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 2835.649083] wlan0: Limiting TX power to 23 (23 - 0) dBm as advertised by e8:04:62:22:0d:fc
[ 2837.632395] wlan0: deauthenticating from e8:04:62:22:0d:fc by local choice (Reason: 3=DEAUTH_LEAVING)
[ 2837.648516] cfg80211: World regulatory domain updated:
[ 2837.648519] cfg80211:  DFS Master region: unset
[ 2837.648521] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2837.648524] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 2837.648525] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 2837.648527] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 2837.648529] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 2837.648531] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 2837.648533] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 2837.648534] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 2837.648536] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)