Instalei o ubuntu 14.04 no meu novo laptop Lenovo Thinkpad E540
Eu me conecto a uma rede wifi, mas depois de um tempo eu perdi a conexão, eu tento reconectar, mas ele não pode se conectar novamente a qualquer rede wifi. para conectar novamente eu tenho que reiniciar o computador.
aqui faz parte do meu código dmesg:
[ 618.444235] wlan0: authenticate with f8:1a:67:b5:da:63
[ 618.464150] wlan0: send auth to f8:1a:67:b5:da:63 (try 1/3)
[ 618.465700] wlan0: authenticated
[ 618.467617] wlan0: associate with f8:1a:67:b5:da:63 (try 1/3)
[ 618.471473] wlan0: RX AssocResp from f8:1a:67:b5:da:63 (capab=0x411 status=0 aid=2)
[ 618.471683] wlan0: associated
[ 618.471735] cfg80211: Calling CRDA for country: US
[ 618.473575] cfg80211: Regulatory domain changed to country: US
[ 618.473578] cfg80211: DFS Master region: unset
[ 618.473579] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 618.473581] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm), (N/A)
[ 618.473583] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm), (N/A)
[ 618.473584] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 618.473585] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 618.473587] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 618.473588] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm), (N/A)
[ 618.473589] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 643.634049] wlan0: Connection to AP f8:1a:67:b5:da:63 lost
[ 643.666952] cfg80211: Calling CRDA to update world regulatory domain
[ 643.669050] cfg80211: World regulatory domain updated:
[ 643.669053] cfg80211: DFS Master region: unset
[ 643.669054] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 643.669056] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 643.669058] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 643.669060] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 643.669061] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 643.669062] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 645.069564] wlan0: authenticate with f8:1a:67:b5:da:63
[ 645.089661] wlan0: send auth to f8:1a:67:b5:da:63 (try 1/3)
[ 645.091299] wlan0: authenticated
[ 645.093193] wlan0: associate with f8:1a:67:b5:da:63 (try 1/3)
[ 645.098035] wlan0: RX AssocResp from f8:1a:67:b5:da:63 (capab=0x411 status=0 aid=2)
[ 645.098228] wlan0: associated
[ 645.098291] cfg80211: Calling CRDA for country: US
[ 645.100131] cfg80211: Regulatory domain changed to country: US
[ 645.100133] cfg80211: DFS Master region: unset
[ 645.100134] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 645.100137] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm), (N/A)
[ 645.100138] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm), (N/A)
[ 645.100140] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 645.100141] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 645.100142] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 645.100144] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm), (N/A)
[ 645.100145] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 726.303619] wlan0: Connection to AP f8:1a:67:b5:da:63 lost
[ 726.352482] cfg80211: Calling CRDA to update world regulatory domain
[ 726.354514] cfg80211: World regulatory domain updated:
[ 726.354517] cfg80211: DFS Master region: unset
[ 726.354518] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 726.354520] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 726.354522] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 726.354523] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 726.354524] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 726.354526] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 727.755050] wlan0: authenticate with f8:1a:67:b5:da:63
[ 727.775175] wlan0: send auth to f8:1a:67:b5:da:63 (try 1/3)
[ 727.776824] wlan0: authenticated
[ 727.778713] wlan0: associate with f8:1a:67:b5:da:63 (try 1/3)
[ 727.782440] wlan0: RX AssocResp from f8:1a:67:b5:da:63 (capab=0x411 status=0 aid=2)
[ 727.782642] wlan0: associated
[ 727.782693] cfg80211: Calling CRDA for country: US
[ 727.784431] cfg80211: Regulatory domain changed to country: US
[ 727.784433] cfg80211: DFS Master region: unset
[ 727.784434] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 727.784435] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm), (N/A)
[ 727.784437] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm), (N/A)
[ 727.784438] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 727.784439] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 727.784439] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (0 s)
[ 727.784440] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm), (N/A)
[ 727.784441] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[12208.927155] wlan0: deauthenticating from f8:1a:67:b5:da:63 by local choice (Reason: 3=DEAUTH_LEAVING)
[12218.549245] cfg80211: Calling CRDA to update world regulatory domain
[12218.551729] cfg80211: World regulatory domain updated:
[12218.551734] cfg80211: DFS Master region: unset
[12218.551735] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[12218.551738] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[12218.551741] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[12218.551743] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[12218.551745] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[12218.551746] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
e também aqui está minha saída do iwconfig:
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
lo no wireless extensions.
como posso corrigir isso? Eu posso apenas ligar para netwotk por conexão com fio agora :(
você pode por favor me ajudar a consertar isso?