Conexão sem fio cai no Intel Centrino 6235

1

Eu estou em uma rede wifi na escola que tem acesso seguro e eu tenho usado por meses, mas o problema começou há alguns dias. A cada 3-5 minutos eu perco o acesso à internet, mas mantenho a conexão de rede. Eu trabalho em um bloco de cubículo e outras pessoas ao meu redor têm o mesmo computador e não têm o mesmo problema. Meu hardware é:

02:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6235 [8086:088e] (rev 24)      

O log dmesg mostra tentando se reconectar várias vezes:

[ 1302.144315] wlan0: authenticated
[ 1302.146992] wlan0: associate with e8:40:40:de:84:0e (try 1/3)    
[ 1302.149488] wlan0: RX AssocResp from e8:40:40:de:84:0e (capab=0x11 status=0 aid=6)
[ 1302.151583] wlan0: associated
[ 1302.151737] cfg80211: Calling CRDA for country: US
[ 1302.158666] cfg80211: Regulatory domain changed to country: US
[ 1302.158675] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1302.158680] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 1302.158685] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 1302.158688] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1302.158692] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1302.158695] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1302.158699] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 1302.158703] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 1337.260080] wlan0: authenticate with e8:40:40:de:83:de
[ 1337.264195] wlan0: send auth to e8:40:40:de:83:de (try 1/3)
[ 1337.267376] cfg80211: Calling CRDA to update world regulatory domain
[ 1337.272327] cfg80211: World regulatory domain updated:
[ 1337.272331] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1337.272334] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1337.272336] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1337.272338] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 1337.272340] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1337.272342] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1337.441577] wlan0: authenticated
[ 1337.441763] wlan0: waiting for beacon from e8:40:40:de:83:de
[ 1338.039990] wlan0: authenticate with e8:40:40:de:83:d1
[ 1338.043779] wlan0: direct probe to e8:40:40:de:83:d1 (try 1/3)
[ 1338.247708] wlan0: direct probe to e8:40:40:de:83:d1 (try 2/3)
[ 1338.451806] wlan0: direct probe to e8:40:40:de:83:d1 (try 3/3)
[ 1338.655819] wlan0: authentication with e8:40:40:de:83:d1 timed out
[ 1338.975657] wlan0: authenticate with e8:40:40:de:84:01
[ 1338.979325] wlan0: direct probe to e8:40:40:de:84:01 (try 1/3)
[ 1339.180150] wlan0: direct probe to e8:40:40:de:84:01 (try 2/3)
[ 1339.384220] wlan0: direct probe to e8:40:40:de:84:01 (try 3/3)
[ 1339.588344] wlan0: authentication with e8:40:40:de:84:01 timed out
[ 1339.916331] wlan0: authenticate with e8:40:40:de:84:0e
[ 1339.920502] wlan0: send auth to e8:40:40:de:84:0e (try 1/3)
[ 1340.077258] wlan0: authenticated
[ 1340.080528] wlan0: associate with e8:40:40:de:84:0e (try 1/3)
[ 1340.084215] wlan0: RX AssocResp from e8:40:40:de:84:0e (capab=0x11 status=0 aid=6)
[ 1340.086033] wlan0: associated
[ 1340.086179] cfg80211: Calling CRDA for country: US
[ 1340.092255] cfg80211: Regulatory domain changed to country: US
[ 1340.092260] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1340.092265] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 1340.092268] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 1340.092271] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1340.092275] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1340.092279] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1340.092282] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 1340.092286] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 1345.335289] cfg80211: Calling CRDA to update world regulatory domain
[ 1345.343514] cfg80211: World regulatory domain updated:
[ 1345.343523] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1345.343528] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1345.343532] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1345.343536] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 1345.343540] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1345.343543] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1345.600092] wlan0: authenticate with e8:40:40:df:3c:51
[ 1345.603976] wlan0: direct probe to e8:40:40:df:3c:51 (try 1/3)
[ 1345.807113] wlan0: direct probe to e8:40:40:df:3c:51 (try 2/3)
[ 1346.011298] wlan0: direct probe to e8:40:40:df:3c:51 (try 3/3)
[ 1346.215386] wlan0: authentication with e8:40:40:df:3c:51 timed out
[ 1346.421490] wlan0: authenticate with e8:40:40:df:3c:5e
[ 1346.426389] wlan0: direct probe to e8:40:40:df:3c:5e (try 1/3)
[ 1346.627589] wlan0: direct probe to e8:40:40:df:3c:5e (try 2/3)
[ 1346.831676] wlan0: direct probe to e8:40:40:df:3c:5e (try 3/3)
[ 1347.035754] wlan0: authentication with e8:40:40:df:3c:5e timed out
[ 1347.188938] wlan0: authenticate with e8:40:40:73:24:61
[ 1347.193573] wlan0: send auth to e8:40:40:73:24:61 (try 1/3)
[ 1347.220771] wlan0: send auth to e8:40:40:73:24:61 (try 2/3)
[ 1347.246409] wlan0: send auth to e8:40:40:73:24:61 (try 3/3)
[ 1347.271798] wlan0: authentication with e8:40:40:73:24:61 timed out
[ 1350.225149] wlan0: authenticate with e8:40:40:df:66:a1
[ 1350.228523] wlan0: send auth to e8:40:40:df:66:a1 (try 1/3)
[ 1350.333209] wlan0: send auth to e8:40:40:df:66:a1 (try 2/3)
[ 1350.334445] wlan0: authenticated
[ 1350.334920] wlan0: waiting for beacon from e8:40:40:df:66:a1
[ 1350.385317] wlan0: associate with e8:40:40:df:66:a1 (try 1/3)
[ 1350.389597] wlan0: RX AssocResp from e8:40:40:df:66:a1 (capab=0x431 status=0 aid=1)
[ 1350.391735] wlan0: associated
[ 1350.391967] cfg80211: Calling CRDA for country: US
[ 1350.399655] cfg80211: Regulatory domain changed to country: US
[ 1350.399664] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1350.399669] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 1350.399674] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 1350.399677] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1350.399681] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1350.399684] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1350.399688] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 1350.399692] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 1368.358146] cfg80211: Calling CRDA to update world regulatory domain
[ 1368.366211] cfg80211: World regulatory domain updated:
[ 1368.366220] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1368.366226] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1368.366230] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1368.366234] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 1368.366238] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1368.366241] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1368.655644] wlan0: authenticate with e8:40:40:73:f2:51
[ 1368.660406] wlan0: direct probe to e8:40:40:73:f2:51 (try 1/3)
[ 1368.861864] wlan0: direct probe to e8:40:40:73:f2:51 (try 2/3)
[ 1369.065904] wlan0: send auth to e8:40:40:73:f2:51 (try 3/3)
[ 1369.068259] wlan0: authenticated
[ 1369.069932] wlan0: associate with e8:40:40:73:f2:51 (try 1/3)
[ 1369.074161] wlan0: RX AssocResp from e8:40:40:73:f2:51 (capab=0x431 status=0 aid=2)
[ 1369.076196] wlan0: associated
[ 1369.076333] cfg80211: Calling CRDA for country: US
[ 1369.082750] cfg80211: Regulatory domain changed to country: US
[ 1369.082759] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1369.082767] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 1369.082774] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 1369.082780] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1369.082787] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1369.082793] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1369.082799] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 1369.082805] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 1475.676205] wlan0: deauthenticated from e8:40:40:73:f2:51 (Reason: 252)
[ 1475.691714] cfg80211: Calling CRDA to update world regulatory domain
[ 1475.699688] cfg80211: World regulatory domain updated:
[ 1475.699697] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1475.699702] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1475.699707] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1475.699710] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 1475.699714] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1475.699717] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1478.730685] wlan0: authenticate with e8:40:40:df:55:21
[ 1478.734432] wlan0: send auth to e8:40:40:df:55:21 (try 1/3)
[ 1478.735859] wlan0: authenticated
[ 1478.736649] wlan0: associate with e8:40:40:df:55:21 (try 1/3)
[ 1478.740235] wlan0: RX AssocResp from e8:40:40:df:55:21 (capab=0x431 status=0 aid=14)
[ 1478.742354] wlan0: associated
[ 1478.742418] cfg80211: Calling CRDA for country: US
[ 1478.746067] cfg80211: Regulatory domain changed to country: US
[ 1478.746071] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1478.746073] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 1478.746075] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 1478.746077] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1478.746079] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1478.746081] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1478.746083] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 1478.746084] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 1515.056229] wlan0: deauthenticating from e8:40:40:df:55:21 by local choice (reason=3)
[ 1515.063691] cfg80211: Calling CRDA to update world regulatory domain
[ 1515.072822] cfg80211: World regulatory domain updated:
[ 1515.072826] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1515.072829] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1515.072831] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1515.072834] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 1515.072836] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1515.072838] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1517.988230] wlan0: authenticate with e8:40:40:df:55:2e
[ 1517.992297] wlan0: send auth to e8:40:40:df:55:2e (try 1/3)
[ 1517.997058] wlan0: authenticated
[ 1517.997196] wlan0: waiting for beacon from e8:40:40:df:55:2e
[ 1518.102741] wlan0: associate with e8:40:40:df:55:2e (try 1/3)
[ 1518.109021] wlan0: RX AssocResp from e8:40:40:df:55:2e (capab=0x11 status=0 aid=5)
[ 1518.111267] wlan0: associated
[ 1518.111403] cfg80211: Calling CRDA for country: US
[ 1518.119766] cfg80211: Regulatory domain changed to country: US
[ 1518.119775] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1518.119780] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 1518.119784] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 1518.119788] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1518.119792] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1518.119795] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1518.119799] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 1518.119802] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 1664.181679] asus_wmi: Unknown key 7a pressed
[ 1839.423052] wlan0: authenticate with e8:40:40:df:55:21
[ 1839.427090] wlan0: direct probe to e8:40:40:df:55:21 (try 1/3)
[ 1839.428306] cfg80211: Calling CRDA to update world regulatory domain
[ 1839.433970] cfg80211: World regulatory domain updated:
[ 1839.433975] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain,     max_eirp)
[ 1839.433978] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1839.433980] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1839.433982] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 1839.433984] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1839.433985] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1839.629396] wlan0: direct probe to e8:40:40:df:55:21 (try 2/3)
[ 1839.833524] wlan0: direct probe to e8:40:40:df:55:21 (try 3/3)
[ 1840.037560] wlan0: authentication with e8:40:40:df:55:21 timed out
[ 1840.180304] wlan0: authenticate with e8:40:40:df:55:2e
[ 1840.182998] wlan0: send auth to e8:40:40:df:55:2e (try 1/3)
[ 1840.258938] wlan0: authenticated
[ 1840.261725] wlan0: associate with e8:40:40:df:55:2e (try 1/3)
[ 1840.265685] wlan0: RX AssocResp from e8:40:40:df:55:2e (capab=0x11 status=0 aid=5)
[ 1840.268302] wlan0: associated
[ 1840.268527] cfg80211: Calling CRDA for country: US
[ 1840.275845] cfg80211: Regulatory domain changed to country: US
[ 1840.275855] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 1840.275860] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 1840.275864] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 1840.275868] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1840.275872] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1840.275875] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 1840.275879] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 1840.275883] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 2083.836601] wlan0: deauthenticated from e8:40:40:df:55:2e (Reason: 252)
[ 2083.839098] cfg80211: Calling CRDA to update world regulatory domain
[ 2083.845959] cfg80211: World regulatory domain updated:
[ 2083.845966] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 2083.845970] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2083.845974] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2083.845977] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 2083.845979] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2083.845982] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2083.982047] wlan0: authenticate with e8:40:40:73:f2:5e
[ 2083.986732] wlan0: send auth to e8:40:40:73:f2:5e (try 1/3)
[ 2084.059524] wlan0: authenticated
[ 2084.062342] wlan0: associate with e8:40:40:73:f2:5e (try 1/3)
[ 2084.064863] wlan0: RX AssocResp from e8:40:40:73:f2:5e (capab=0x11 status=0 aid=8)
[ 2084.067684] wlan0: associated
[ 2084.067856] cfg80211: Calling CRDA for country: US
[ 2084.074586] cfg80211: Regulatory domain changed to country: US
[ 2084.074592] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 2084.074596] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 2084.074599] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 2084.074602] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2084.074604] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2084.074607] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2084.074609] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 2084.074612] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
[ 2110.680427] wlan0: deauthenticating from e8:40:40:73:f2:5e by local choice (reason=3)
[ 2110.705721] cfg80211: Calling CRDA to update world regulatory domain
[ 2110.708682] cfg80211: World regulatory domain updated:
[ 2110.708685] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 2110.708687] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2110.708688] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2110.708690] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 2110.708691] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2110.708692] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2113.578170] wlan0: authenticate with e8:40:40:73:f2:5e
[ 2113.581161] wlan0: send auth to e8:40:40:73:f2:5e (try 1/3)
[ 2113.582608] wlan0: authenticated
[ 2113.584011] wlan0: associate with e8:40:40:73:f2:5e (try 1/3)
[ 2113.587971] wlan0: RX AssocResp from e8:40:40:73:f2:5e (capab=0x11 status=0 aid=8)
[ 2113.590012] wlan0: associated
[ 2113.590151] cfg80211: Calling CRDA for country: US
[ 2113.593433] cfg80211: Regulatory domain changed to country: US
[ 2113.593437] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 2113.593439] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[ 2113.593442] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[ 2113.593444] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2113.593446] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2113.593448] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 2113.593450] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[ 2113.593452] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)

Eu já tentei desativar o 802.11N como mencionado em Recepção sem fio fraca do Intel Centrino Centrino Advanced-N 6235 ou até mesmo fazê-lo manualmente como:

sudo rmmod iwlwifi   
sudo modprobe iwlwifi 11n_disable=1

Ambos não funcionaram. Eu até tentei o recurso de desligar por isso da seguinte forma:

sudo iwconfig wlan0 power off

Também tentei desabilitar o IPv6:

echo "net.ipv6.conf.all.disable_ipv6 = 1" | sudo tee -a  /etc/sysctl.conf  
echo "net.ipv6.conf.default.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf  
echo "net.ipv6.conf.lo.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf

E instalando os pacotes linux-firmware e linux-firmware-nonfree .

    
por user3817123 25.07.2014 / 16:11

2 respostas

0

por favor encontre a minha experiência abaixo deste problema com um chip Advanced-N 6235 RESOLVIDO: Eu tive exatamente o mesmo problema descrito neste bug, com um chip sem fio 6235 no meu laptop. Depois de um tempo, fiquei cada vez mais desconfiado de que se tratava de um problema de hardware, não de software / kernel / driver. Eu comprei um novo chip 6235 de substituição, estourou no meu laptop, e o problema está resolvido. Isso foi em U 13.04, e agora estou em 14.04, e tem funcionado perfeitamente desde então. Então definitivamente não há problemas com o kernel ou com o driver no Ubuntu para este chip. Eu não posso comentar para outras fichas, mas se você tiver um chip 6235, sugiro strongmente a compra de um novo substituto, encaixe-o e você encontrará seus problemas resolvidos.

    
por roger_dodger 26.07.2014 / 11:47
0

Por favor, tente o seguinte:

sudo apt-get update
sudo apt-get-upgrade
sudo apt-get install linux-backports-modules-jaunty

Em seguida, reinicie

    
por RiaanV 20.10.2015 / 20:44