Estou usando o Ubuntu. wifi funciona muito bem no meu laptop. Eu estou enfrentando problema com um roteador wifi particular (acho que Airtel Binatone) instalado nas instalações da minha empresa,
Aqui estão alguns registros
1) sudo iwlist scan
Cell 01 - Address: 00:18:0A:21:9E:EE
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=70/70 Signal level=-40 dBm
Encryption key:on
ESSID:"314eMeraki1"
Bit Rates:11 Mb/s; 11 Mb/s; 6 Mb/s; 9 Mb/s; 12 Mb/s
18 Mb/s; 24 Mb/s; 36 Mb/s
Bit Rates:48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000004572cfe90
Extra: Last beacon: 8ms ago
IE: Unknown: 000B333134654D6572616B6931
IE: Unknown: 010896960C1218243048
IE: Unknown: 030101
IE: Unknown: 0706555320010B1E
IE: Unknown: 2A0103
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 3202606C
IE: Unknown: 460573C0010000
IE: Unknown: 33020C01
IE: Unknown: 2D1A8C011BFFFF000000000000000000008000000000000000000000
IE: Unknown: 3D1601000500000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101040003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0D00180A07240000000100EC3E78
Cell 02 - Address: 00:18:0A:21:29:FC
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=52/70 Signal level=-58 dBm
Encryption key:on
ESSID:"314eMeraki1"
Bit Rates:11 Mb/s; 11 Mb/s; 6 Mb/s; 9 Mb/s; 12 Mb/s
18 Mb/s; 24 Mb/s; 36 Mb/s
Bit Rates:48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000003f1d88965
Extra: Last beacon: 8ms ago
IE: Unknown: 000B333134654D6572616B6931
IE: Unknown: 010896960C1218243048
IE: Unknown: 030101
IE: Unknown: 0706555320010B1E
IE: Unknown: 2A0103
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 3202606C
IE: Unknown: 460573C0010000
IE: Unknown: 33020C01
IE: Unknown: 2D1A8C011BFFFF000000000000000000008000000000000000000000
IE: Unknown: 3D1601000500000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101080003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0D00180A07160000000100EC3E78
2) dmesg
[ 1768.252817] wlan0: authenticate with 00:18:0a:21:29:fc
[ 1768.272963] wlan0: send auth to 00:18:0a:21:29:fc (try 1/3)
[ 1768.276056] wlan0: authenticated
[ 1768.280370] wlan0: associate with 00:18:0a:21:29:fc (try 1/3)
[ 1768.283766] wlan0: RX AssocResp from 00:18:0a:21:29:fc (capab=0x1431 status=0 aid=5)
[ 1768.284015] wlan0: associated
[ 1768.284081] cfg80211: Calling CRDA for country: US
[ 1768.286074] cfg80211: Regulatory domain changed to country: US
[ 1768.286078] cfg80211: DFS Master region: FCC
[ 1768.286079] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1768.286082] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm), (N/A)
[ 1768.286083] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm), (N/A)
[ 1768.286085] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 1768.286086] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 1768.286087] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 1768.286089] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm), (N/A)
[ 1768.286090] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 1771.795816] wlan0: disassociated from 00:18:0a:21:29:fc (Reason: 2)
[ 1771.811893] cfg80211: Calling CRDA to update world regulatory domain
[ 1771.817867] cfg80211: World regulatory domain updated:
[ 1771.817876] cfg80211: DFS Master region: unset
[ 1771.817879] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1771.817885] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1771.817890] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1771.817894] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1771.817898] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1771.817901] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
==========
authenticate with 00:18:0a:21:9e:ee
[ 2435.747062] wlan0: send auth to 00:18:0a:21:9e:ee (try 1/3)
[ 2435.748843] wlan0: authenticated
[ 2435.750491] wlan0: associate with 00:18:0a:21:9e:ee (try 1/3)
[ 2435.753988] wlan0: RX AssocResp from 00:18:0a:21:9e:ee (capab=0x1431 status=0 aid=13)
[ 2435.754237] wlan0: associated
[ 2435.754768] cfg80211: Calling CRDA for country: US
[ 2435.756678] cfg80211: Regulatory domain changed to country: US
[ 2435.756681] cfg80211: DFS Master region: FCC
[ 2435.756682] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2435.756684] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm), (N/A)
[ 2435.756686] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm), (N/A)
[ 2435.756687] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 2435.756688] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 2435.756689] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 2435.756690] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm), (N/A)
[ 2435.756692] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 2436.565119] wlan0: deauthenticating from 00:18:0a:21:9e:ee by local choice (Reason: 14=MIC_FAILURE)
[ 2436.576178] cfg80211: Calling CRDA to update world regulatory domain
[ 2436.578321] cfg80211: World regulatory domain updated:
[ 2436.578325] cfg80211: DFS Master region: unset
[ 2436.578326] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2436.578329] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2436.578331] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2436.578333] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2436.578335] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2436.578336] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
on one cell, i am getting
Reason: 14=MIC_FAILURE
on second cell,
Reason: 2