Eu tenho desconexões a cada 5/10/20 min aleatórios do WiFi somente quando estou em um espaço onde há vários AP (Ruckus + Zonedirector) com o mesmo SSID.
Quando há apenas um AP (Ruckus) é estável.
parece que o roaming não está funcionando corretamente.
experimentou diferentes versões do Ubuntu 12.04 e agora 14.10 atuais
com controlador de rede: Intel Corporation Wireless 7260 (rev 83)
lshw:
*-network
version: 83
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.0.4-040004-generic firmware=23.15.10.0 ip=192.168.11.62 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:33 memory:e0400000-e0401fff
tentou um kernel diferente do 3.15, 3.16 e 3.19 e agora 4.0.4 atual
tentei firmware diferente iwlwifi de 22.24.8.0 para o 22.228.9, 25.17.12 e o atual 23.15.10
tentou alterar diferente a iwlwifi.conf com 11n_disable=1 ou bt_coex_active=0 ou iwconfig wlan0 retry short 21
Eu defino Power Management:off com /etc/modprobe.d/iwlmvm.conf
options iwlmvm power_scheme=1
do syslog:
wpa_supplicant[1152]: wlan0: CTRL-EVENT-SCAN-STARTED
wpa_supplicant[1152]: nl80211: send_and_recv->nl_recvmsgs failed: -33
kernel: [13865.409620] wlan0: Limiting TX power to 23 (23 - 0) dBm as advertised by MAC_AP_RUCKUS2
NetworkManager[1115] (wlan0): disconnecting for new activation request.
NetworkManager[1115]: (wlan0): device state change: activated -> disconnected (reason 'none') [100 30 0]
NetworkManager[1115]: (wlan0): deactivating device (reason 'none') [0]
NetworkManager[1115]: (wlan0): canceled DHCP transaction, DHCP client pid 10294
kernel: [14182.706161] wlan0: deauthenticating from MAC_AP_RUCKUS2 by local choice (Reason: 3=DEAUTH_LEAVING)
wpa_supplicant[1152]: wlan0: CTRL-EVENT-DISCONNECTED bssid=MAC_AP_RUCKUS2 reason=3 locally_generated=1
dmesg:
wlan0: deauthenticating from MAC_AP_RUCKUS2 by local choice (Reason: 3=DEAUTH_LEAVING)
cfg80211: Calling CRDA to update world regulatory domain
cfg80211: World regulatory domain updated:
cfg80211: DFS Master region: unset
cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
cfg80211: Calling CRDA for country: IN
cfg80211: Regulatory domain changed to country: IN
cfg80211: DFS Master region: unset
cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
wlan0: authenticate with MAC_AP_RUCKUS
wlan0: send auth to MAC1 (try 1/3)
wlan0: authenticated
RX AssocResp from MAC_AP_RUCKUS (capab=0x411 status=0 aid=3)
wlan0: associated
cfg80211: Calling CRDA for country: GB
wlan0: Limiting TX power to 23 (23 - 0) dBm as advertised by MAC_AP_RUCKUS
cfg80211: DFS Master region: unset
cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm), (0 s)
cfg80211: (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
iw event -f :
wlan0 (phy #0): disconnected (local request)
phy #0: regulatory domain change: set to world roaming by the wireless core upon initialization request
regulatory domain change: set to IN by a user request
wlan0 (phy #0): scan started
wlan0 (phy #0): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 5180 5200 5220 5240 5260 5280 5300 5320 5745 5765 5785 5805 5825, ""
wlan0: new station MAC_RUCKUS_1
wlan0 (phy #0): auth MAC_RUCKUS_1 -> MAC_RUCKUS_2 status: 0: Successful [frame: b0 00 3c 00 5c 51 4f 55 8a 7f 6c aa b3 6d 4b 1c 6c aa b3 6d 4b 1c 00 00 00 00 02 00 00 00]
wlan0 (phy #0): assoc MAC_RUCKUS_1 -> MAC_RUCKUS_2 status: 0: Successful [frame: 10 00 3c 00 5c 51 4f 55 8a 7f 6c aa b3 6d 4b 1c 6c aa b3 6d 4b 1c 10 00 11 04 00 00 03 c0 01 08 8c 12 98 24 b0 48 60 6c dd 18 00 50 f2 02 01 01 81 00 03 a4 00 00 27 a4 00 00 42 43 5e 00 62 32 2f 00 2d 1a ef 01 1b ff ff 00 00 00 00 00 00 00 00 00 00 10 00 00 00 00 04 06 46 e7 0d 00 3d 16 2c 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 dd 08 00 13 92 01 00 01 05 00]
wlan0 (phy #0): connected to MAC_RUCKUS_1
phy #0: regulatory domain change: set to GB by a country IE request on phy0
wlan0 (phy #0): scan started
wlan0 (phy #0): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 5180 5200 5220 5240 5260 5280 5300 5320 5500 5520 5540 5560 5580 5600 5620 5640 5660 5680 5700, ""
wlan0 (phy #0): scan started
wlan0 (phy #0): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 5180 5200 5220 5240 5260 5280 5300 5320 5500 5520 5540 5560 5580 5600 5620 5640 5660 5680 5700, ""
wlan0 (phy #0): scan started
wlan0 (phy #0): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 5180 5200 5220 5240 5260 5280 5300 5320 5500 5520 5540 5560 5580 5600 5620 5640 5660 5680 5700, ""
wlan0 (phy #0): scan started
wlan0 (phy #0): scan finished: 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 5180 5200 5220 5240 5260 5280 5300 5320 5500 5520 5540 5560 5580 5600 5620 5640 5660 5680 5700, ""
A única solução que encontrei é ir para o Network Connection e configurar o BSSID estático como aqui link