Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I am in a wifi network at school which has secure access and I have been using it for months now, but the problem started a few days ago. Every 3-5 minutes I lose internet access, but retain the network connection. I work in a cubicle block and other people around me have the same computer and do not have the same problem. My hardware is:

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

The dmesg log shows trying to reconnect numerous times:

[ 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)

I have already tried disabling the 802.11N as mentioned in Intel Centrino Centrino Advanced-N 6235 weak wireless reception or even doing it manually like:

sudo rmmod iwlwifi   
sudo modprobe iwlwifi 11n_disable=1

Both did not work. I even tried the power off feature for it like so:

sudo iwconfig wlan0 power off

Also tried disabling 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

And installing the linux-firmware and linux-firmware-nonfree packages.

share|improve this question
    
Installed, rebooted, ran commands and still not working –  user3817123 Jul 25 at 19:25
    
Ok lets wait for others to help. –  Luis Alvarado Jul 25 at 19:33

1 Answer 1

please find my experience below of this problem with an Advanced-N 6235 chip SOLVED: I had exactly the same issue as described in this bug, with a 6235 wireless chip in my laptop. After a while, I became increasingly suspicious that it was a hardware issue, not software/kernel/driver. I bought a newer replacement 6235 chip, popped in my laptop, and the problem is now solved. This was on U 13.04, and I'm now on 14.04, and it has been running perfectly ever since. So there is definitely no problems with the kernel or driver in Ubuntu for this chip. I can't comment for other chips, but if you have a 6235 chip, I would strongly suggest purchasing a new replacement, fitting it, and you will find your issues resolved.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.