I've turned off "SmartSelect" on the Ruckus ZoneFlex 7982 and picked a
static channel. The connection is now more stable, at least no
de-associations today.
It makes me think that rapid or very frequent channel switching by the AP
is exposing a problem in the driver that one would otherwise never see.
-KB
On Thu, 17 Oct 2013, Kenneth Berland wrote:
All,
I'm having a hard time keeping a connection to a Ruckus ZoneFlex 7982 AP. The
SSID is running WPA2/PSK/AES. I'm running a recent iwlwifi kernel
(3.12.0-rc3-wl+) and have a Centrino chipset. After an hour or so, the
interface is disconnected. It can only reauthenticate when the iwlwifi
module is removed and re-inserted.
Thanks in advance,
Ken
I'm running a recent wpa_supplicant with nl80211 like this:
/sbin/wpa_supplicant -Dnl80211 -s -i wlan0 -c ./gr-test.conf
The relevant log output is the following (I think):
Oct 17 10:39:26 ken-x230 wpa_supplicant[15828]: Successfully initialized
wpa_supplicant
Oct 17 10:39:26 ken-x230 kernel: [19456.093074] iwlwifi 0000:03:00.0: L1
Enabled; Disabling L0S
Oct 17 10:39:26 ken-x230 kernel: [19456.100991] iwlwifi 0000:03:00.0: Radio
type=0x2-0x0-0x0
Oct 17 10:39:26 ken-x230 kernel: [19456.173751] IPv6: ADDRCONF(NETDEV_UP):
wlan0: link is not ready
Oct 17 10:39:27 ken-x230 wpa_supplicant[15828]: wlan0: SME: Trying to
authenticate with 2c:e6:cc:84:8d:98 (SSID='GR-Test' freq=2457 MHz)
Oct 17 10:39:27 ken-x230 kernel: [19456.930480] wlan0: authenticate with
2c:e6:cc:84:8d:98
Oct 17 10:39:27 ken-x230 kernel: [19456.935141] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 1/3)
Oct 17 10:39:28 ken-x230 kernel: [19458.156795] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 2/3)
Oct 17 10:39:29 ken-x230 kernel: [19459.169462] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 3/3)
Oct 17 10:39:30 ken-x230 kernel: [19460.170078] wlan0: authentication with
2c:e6:cc:84:8d:98 timed out
Oct 17 10:39:31 ken-x230 wpa_supplicant[15828]: wlan0: SME: Trying to
authenticate with 2c:e6:cc:84:8d:98 (SSID='GR-Test' freq=2457 MHz)
Oct 17 10:39:31 ken-x230 kernel: [19460.932095] wlan0: authenticate with
2c:e6:cc:84:8d:98
Oct 17 10:39:31 ken-x230 kernel: [19460.935224] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 1/3)
Oct 17 10:39:32 ken-x230 kernel: [19462.159432] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 2/3)
Oct 17 10:39:33 ken-x230 kernel: [19463.148066] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 3/3)
Oct 17 10:39:34 ken-x230 kernel: [19464.148711] wlan0: authentication with
2c:e6:cc:84:8d:98 timed out
Oct 17 10:39:35 ken-x230 wpa_supplicant[15828]: wlan0: SME: Trying to
authenticate with 2c:e6:cc:84:8d:98 (SSID='GR-Test' freq=2457 MHz)
Oct 17 10:39:35 ken-x230 kernel: [19465.307056] wlan0: authenticate with
2c:e6:cc:84:8d:98
Oct 17 10:39:35 ken-x230 kernel: [19465.311719] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 1/3)
Oct 17 10:39:36 ken-x230 kernel: [19466.162056] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 2/3)
Oct 17 10:39:37 ken-x230 kernel: [19467.162688] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 3/3)
Oct 17 10:39:38 ken-x230 kernel: [19468.139372] wlan0: authentication with
2c:e6:cc:84:8d:98 timed out
or, sometimes, like this:
Oct 16 18:35:20 ken-x230 wpa_supplicant[5490]: wlan0: CTRL-EVENT-CONNECTED -
Connection to 2c:e6:cc:84:8d:98 completed [id=0 id_str=]
Oct 16 18:35:22 ken-x230 kernel: [ 5141.751420] wlan0: deauthenticated from
2c:e6:cc:84:8d:98 (Reason: 6)
Oct 16 18:35:22 ken-x230 wpa_supplicant[5490]: wlan0: CTRL-EVENT-DISCONNECTED
bssid=2c:e6:cc:84:8d:98 reason=6
Oct 16 18:35:22 ken-x230 wpa_supplicant[5490]: wlan0: SME: Trying to
authenticate with 2c:e6:cc:84:8d:98 (SSID='GR-Test' freq=2457 MHz)
Oct 16 18:35:22 ken-x230 kernel: [ 5141.806347] wlan0: authenticate with
2c:e6:cc:84:8d:98
Oct 16 18:35:22 ken-x230 wpa_supplicant[5490]: wlan0: Trying to associate
with 2c:e6:cc:84:8d:98 (SSID='GR-Test' freq=2457 MHz)
Oct 16 18:35:22 ken-x230 kernel: [ 5141.810436] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 1/3)
Oct 16 18:35:22 ken-x230 kernel: [ 5141.812469] wlan0: authenticated
Oct 16 18:35:22 ken-x230 kernel: [ 5141.813760] wlan0: associate with
2c:e6:cc:84:8d:98 (try 1/3)
Oct 16 18:35:22 ken-x230 kernel: [ 5141.817635] wlan0: RX AssocResp from
2c:e6:cc:84:8d:98 (capab=0x431 status=0 aid=3)
Oct 16 18:35:22 ken-x230 wpa_supplicant[5490]: wlan0: Associated with
2c:e6:cc:84:8d:98
Oct 16 18:35:22 ken-x230 kernel: [ 5141.836654] wlan0: associated
Oct 16 18:35:22 ken-x230 wpa_supplicant[5490]: wlan0: WPA: Key negotiation
completed with 2c:e6:cc:84:8d:98 [PTK=CCMP GTK=CCMP]
Oct 16 18:35:22 ken-x230 wpa_supplicant[5490]: wlan0: CTRL-EVENT-CONNECTED -
Connection to 2c:e6:cc:84:8d:98 completed [id=0 id_str=]
Oct 16 18:35:25 ken-x230 kernel: [ 5144.220601] wlan0: deauthenticated from
2c:e6:cc:84:8d:98 (Reason: 6)
Oct 16 18:35:25 ken-x230 wpa_supplicant[5490]: wlan0: CTRL-EVENT-DISCONNECTED
bssid=2c:e6:cc:84:8d:98 reason=6
Oct 16 18:35:25 ken-x230 wpa_supplicant[5490]: wlan0: SME: Trying to
authenticate with 2c:e6:cc:84:8d:98 (SSID='GR-Test' freq=2457 MHz)
Oct 16 18:35:25 ken-x230 kernel: [ 5144.263904] wlan0: authenticate with
2c:e6:cc:84:8d:98
Oct 16 18:35:25 ken-x230 wpa_supplicant[5490]: wlan0: Trying to associate
with 2c:e6:cc:84:8d:98 (SSID='GR-Test' freq=2457 MHz)
Oct 16 18:35:25 ken-x230 kernel: [ 5144.268060] wlan0: send auth to
2c:e6:cc:84:8d:98 (try 1/3)
Oct 16 18:35:25 ken-x230 kernel: [ 5144.269809] wlan0: authenticated
Oct 16 18:35:25 ken-x230 kernel: [ 5144.271371] wlan0: associate with
2c:e6:cc:84:8d:98 (try 1/3)
Oct 16 18:35:25 ken-x230 kernel: [ 5144.275280] wlan0: RX AssocResp from
2c:e6:cc:84:8d:98 (capab=0x431 status=0 aid=3)
Oct 16 18:35:25 ken-x230 wpa_supplicant[5490]: wlan0: Associated with
2c:e6:cc:84:8d:98
Oct 16 18:35:25 ken-x230 kernel: [ 5144.294692] wlan0: associated
Oct 16 18:35:25 ken-x230 wpa_supplicant[5490]: wlan0: WPA: Key negotiation
completed with 2c:e6:cc:84:8d:98 [PTK=CCMP GTK=CCMP]
Oct 16 18:35:25 ken-x230 wpa_supplicant[5490]: wlan0: CTRL-EVENT-CONNECTED -
Connection to 2c:e6:cc:84:8d:98 completed [id=0 id_str=]
Oct 16 18:35:26 ken-x230 kernel: [ 5145.809824] wlan0: deauthenticated from
2c:e6:cc:84:8d:98 (Reason: 6)
Oct 16 18:35:26 ken-x230 wpa_supplicant[5490]: wlan0: CTRL-EVENT-DISCONNECTED
bssid=2c:e6:cc:84:8d:98 reason=6
Here is the other, I hope relevant, info:
$ uname -a
Linux ken-x230 3.12.0-rc3-wl+ #1 SMP Tue Oct 8 11:47:43 PDT 2013 x86_64
x86_64 x86_64 GNU/Linux # git-sha 1f117d
# wpa_supplicant version:
$ git remote -v | head -1
origin git://w1.fi/srv/git/hostap.git (fetch)
$ git log --decorate | head -1
commit 5bfd7e91685e65977c8db72afdca0cab310f8667 (HEAD, origin/master,
origin/HEAD, master)
$ lspci -v # edited
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 2200 (rev
c4)
Subsystem: Intel Corporation Centrino Wireless-N 2200 BGN
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at f1c00000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
$ iw dev wlan0 info # before it locks up
Interface wlan0
ifindex 14
type managed
wiphy 0
$ iw dev wlan0 link #again, before it locks up
Connected to 2c:e6:cc:84:8d:98 (on wlan0)
SSID: GR-Test
freq: 2457
RX: 14757340 bytes (45075 packets)
TX: 2596610 bytes (8879 packets)
signal: -37 dBm
tx bitrate: 130.0 MBit/s MCS 14 short GI
bss flags: short-preamble short-slot-time
dtim period: 0
beacon int: 100
$ iw list
Wiphy phy0
Band 1:
Capabilities: 0x1072
HT20/HT40
Static SM Power Save
RX Greenfield
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT TX/RX MCS rate indexes supported: 0-15, 32
Frequencies:
* 2412 MHz [1] (15.0 dBm)
* 2417 MHz [2] (15.0 dBm)
* 2422 MHz [3] (15.0 dBm)
* 2427 MHz [4] (15.0 dBm)
* 2432 MHz [5] (15.0 dBm)
* 2437 MHz [6] (15.0 dBm)
* 2442 MHz [7] (15.0 dBm)
* 2447 MHz [8] (15.0 dBm)
* 2452 MHz [9] (15.0 dBm)
* 2457 MHz [10] (16.0 dBm)
* 2462 MHz [11] (15.0 dBm)
* 2467 MHz [12] (15.0 dBm) (passive scanning, no IBSS)
* 2472 MHz [13] (15.0 dBm) (passive scanning, no IBSS)
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
max # scan SSIDs: 20
max scan IEs length: 195 bytes
Coverage class: 0 (up to 0m)
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP (00-0f-ac:4)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
software interface modes (can always be added):
* AP/VLAN
* monitor
valid interface combinations:
* #{ managed } <= 1, #{ AP } <= 1,
total <= 2, #channels <= 1, STA/AP BI must match
* #{ managed } <= 2,
total <= 2, #channels <= 1
Supported commands:
* new_interface
* set_interface
* new_key
* new_beacon
* new_station
* new_mpath
* set_mesh_params
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* join_mesh
* set_tx_bitrate_mask
* action
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* set_wds_peer
* Unknown command (84)
* Unknown command (87)
* Unknown command (85)
* Unknown command (89)
* Unknown command (92)
* testmode
* connect
* disconnect
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0
0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0
0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0
0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0
0xb0 0xc0 0xd0 0xe0 0xf0
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0
0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0
0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0
0xb0 0xc0 0xd0 0xe0 0xf0
* Unknown mode (10): 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80
0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0x40 0xb0 0xc0 0xd0
* managed: 0x40 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* Unknown mode (10): 0x40 0xd0
Device supports RSN-IBSS.
WoWLAN support:
* wake up on disconnect
* wake up on magic packet
* wake up on pattern match, up to 20 patterns of 16-128 bytes
* can do GTK rekeying
* wake up on GTK rekey failure
* wake up on EAP identity request
* wake up on rfkill release
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.
$ lsmod | grep iwlwifi
iwlwifi 165203 1 iwldvm
cfg80211 494159 3 iwldvm,mac80211,iwlwifi
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