Quando obtive meu primeiro laptop, tive o mesmo problema descrito em Sem fio para a Intel Corporation 7260 versão 63 . Eu segui as instruções e tudo funcionou perfeitamente por vários meses.
Algumas semanas atrás, de repente, perdi a capacidade de me conectar ao meu roteador, com o ícone sem fio preso na animação "conectando" e o prompt de senha aparecendo repetidamente. Eu ainda sou capaz de se conectar bem usando o Windows no mesmo laptop e com o meu Mac. Eu tentei instalar versões mais recentes dos backports, sem efeito. Veja algumas informações sobre minha configuração.
$ uname -a
Linux l-i7537 3.8.0-38-generic #56~precise1-Ubuntu SMP Thu Mar 13 16:22:48 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
$ lspci | grep Wireless
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)
$ lsmod | grep iwl
filename: /lib/modules/3.8.0-38-generic/updates/drivers/net/wireless/iwlwifi/iwlwifi.ko
version: backported from Linux (v3.16-rc1-0-g7171511) using backports v3.16-rc1-1-0-g04d6077
license: GPL
author: Copyright(c) 2003- 2014 Intel Corporation <[email protected]>
version: in-tree:d
description: Intel(R) Wireless WiFi driver for Linux
firmware: iwlwifi-100-5.ucode
firmware: iwlwifi-1000-5.ucode
firmware: iwlwifi-135-6.ucode
firmware: iwlwifi-105-6.ucode
firmware: iwlwifi-2030-6.ucode
firmware: iwlwifi-2000-6.ucode
firmware: iwlwifi-5150-2.ucode
firmware: iwlwifi-5000-5.ucode
firmware: iwlwifi-6000g2b-6.ucode
firmware: iwlwifi-6000g2a-5.ucode
firmware: iwlwifi-6050-5.ucode
firmware: iwlwifi-6000-4.ucode
firmware: iwlwifi-7265-9.ucode
firmware: iwlwifi-3160-9.ucode
firmware: iwlwifi-7260-9.ucode
firmware: iwlwifi-8000-8.ucode
srcversion: 9E8CD8B5CABFCD8FF940D28
alias: pci:v00008086d000024F4sv*sd00000030bc*sc*i*
alias: pci:v00008086d000024F3sv*sd00000010bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005490bc*sc*i*
alias: pci:v00008086d0000095Bsv*sd00005290bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005590bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005190bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005090bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005420bc*sc*i*
alias: pci:v00008086d0000095Asv*sd0000502Abc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005020bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009410bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009310bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009510bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009200bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009210bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009112bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009110bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009012bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00009010bc*sc*i*
alias: pci:v00008086d0000095Bsv*sd00005202bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005102bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005002bc*sc*i*
alias: pci:v00008086d0000095Bsv*sd00005200bc*sc*i*
alias: pci:v00008086d0000095Asv*sd0000500Abc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005000bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00001010bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005400bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005410bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005412bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005012bc*sc*i*
alias: pci:v00008086d0000095Bsv*sd00005210bc*sc*i*
alias: pci:v00008086d0000095Bsv*sd00005302bc*sc*i*
alias: pci:v00008086d0000095Bsv*sd00005310bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005100bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005110bc*sc*i*
alias: pci:v00008086d0000095Asv*sd00005010bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00001170bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00001070bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00008570bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00008470bc*sc*i*
alias: pci:v00008086d000008B4sv*sd00008270bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00008062bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00008060bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00008172bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00008170bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00008072bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00008070bc*sc*i*
alias: pci:v00008086d000008B4sv*sd00000370bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00000472bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00000470bc*sc*i*
alias: pci:v00008086d000008B4sv*sd00000272bc*sc*i*
alias: pci:v00008086d000008B4sv*sd00000270bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00000062bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00000060bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00000172bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00000170bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00000072bc*sc*i*
alias: pci:v00008086d000008B3sv*sd00000070bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C420bc*sc*i*
alias: pci:v00008086d000008B2sv*sd0000C220bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C02Abc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C020bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C360bc*sc*i*
alias: pci:v00008086d000008B2sv*sd0000C370bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C560bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C570bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C462bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C460bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C472bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C470bc*sc*i*
alias: pci:v00008086d000008B2sv*sd0000C262bc*sc*i*
alias: pci:v00008086d000008B2sv*sd0000C26Abc*sc*i*
alias: pci:v00008086d000008B2sv*sd0000C260bc*sc*i*
alias: pci:v00008086d000008B2sv*sd0000C272bc*sc*i*
alias: pci:v00008086d000008B2sv*sd0000C270bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C760bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C770bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C162bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C062bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C160bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C06Abc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C060bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C170bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C072bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000C070bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004420bc*sc*i*
alias: pci:v00008086d000008B2sv*sd00004220bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000402Abc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004020bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00005770bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00005170bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00005072bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00005070bc*sc*i*
alias: pci:v00008086d000008B2sv*sd00004360bc*sc*i*
alias: pci:v00008086d000008B2sv*sd00004370bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004560bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004570bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004A6Cbc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004A6Ebc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004A70bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000486Ebc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004870bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004462bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000446Abc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004460bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004472bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004470bc*sc*i*
alias: pci:v00008086d000008B2sv*sd00004262bc*sc*i*
alias: pci:v00008086d000008B2sv*sd0000426Abc*sc*i*
alias: pci:v00008086d000008B2sv*sd00004260bc*sc*i*
alias: pci:v00008086d000008B2sv*sd00004272bc*sc*i*
alias: pci:v00008086d000008B2sv*sd00004270bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004162bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004062bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004160bc*sc*i*
alias: pci:v00008086d000008B1sv*sd0000406Abc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004060bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004170bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004072bc*sc*i*
alias: pci:v00008086d000008B1sv*sd00004070bc*sc*i*
alias: pci:v00008086d00000892sv*sd00000462bc*sc*i*
alias: pci:v00008086d00000893sv*sd00000262bc*sc*i*
alias: pci:v00008086d00000892sv*sd00000062bc*sc*i*
alias: pci:v00008086d00000894sv*sd00000822bc*sc*i*
alias: pci:v00008086d00000894sv*sd00000422bc*sc*i*
alias: pci:v00008086d00000895sv*sd00000222bc*sc*i*
alias: pci:v00008086d00000894sv*sd00000022bc*sc*i*
alias: pci:v00008086d0000088Fsv*sd00005260bc*sc*i*
alias: pci:v00008086d0000088Esv*sd00004860bc*sc*i*
alias: pci:v00008086d0000088Esv*sd0000446Abc*sc*i*
alias: pci:v00008086d0000088Esv*sd00004460bc*sc*i*
alias: pci:v00008086d0000088Fsv*sd0000426Abc*sc*i*
alias: pci:v00008086d0000088Fsv*sd00004260bc*sc*i*
alias: pci:v00008086d0000088Esv*sd0000406Abc*sc*i*
alias: pci:v00008086d0000088Esv*sd00004060bc*sc*i*
alias: pci:v00008086d00000887sv*sd00004462bc*sc*i*
alias: pci:v00008086d00000888sv*sd00004262bc*sc*i*
alias: pci:v00008086d00000887sv*sd00004062bc*sc*i*
alias: pci:v00008086d00000890sv*sd00004822bc*sc*i*
alias: pci:v00008086d00000890sv*sd00004422bc*sc*i*
alias: pci:v00008086d00000891sv*sd00004222bc*sc*i*
alias: pci:v00008086d00000890sv*sd00004022bc*sc*i*
alias: pci:v00008086d00000896sv*sd00005027bc*sc*i*
alias: pci:v00008086d00000896sv*sd00005025bc*sc*i*
alias: pci:v00008086d00000897sv*sd00005017bc*sc*i*
alias: pci:v00008086d00000897sv*sd00005015bc*sc*i*
alias: pci:v00008086d00000896sv*sd00005007bc*sc*i*
alias: pci:v00008086d00000896sv*sd00005005bc*sc*i*
alias: pci:v00008086d000008AEsv*sd00001027bc*sc*i*
alias: pci:v00008086d000008AEsv*sd00001025bc*sc*i*
alias: pci:v00008086d000008AFsv*sd00001017bc*sc*i*
alias: pci:v00008086d000008AFsv*sd00001015bc*sc*i*
alias: pci:v00008086d000008AEsv*sd00001007bc*sc*i*
alias: pci:v00008086d000008AEsv*sd00001005bc*sc*i*
alias: pci:v00008086d00000084sv*sd00001316bc*sc*i*
alias: pci:v00008086d00000084sv*sd00001216bc*sc*i*
alias: pci:v00008086d00000083sv*sd00001326bc*sc*i*
alias: pci:v00008086d00000083sv*sd00001226bc*sc*i*
alias: pci:v00008086d00000083sv*sd00001306bc*sc*i*
alias: pci:v00008086d00000083sv*sd00001206bc*sc*i*
alias: pci:v00008086d00000084sv*sd00001315bc*sc*i*
alias: pci:v00008086d00000084sv*sd00001215bc*sc*i*
alias: pci:v00008086d00000083sv*sd00001325bc*sc*i*
alias: pci:v00008086d00000083sv*sd00001225bc*sc*i*
alias: pci:v00008086d00000083sv*sd00001305bc*sc*i*
alias: pci:v00008086d00000083sv*sd00001205bc*sc*i*
alias: pci:v00008086d00000886sv*sd00001317bc*sc*i*
alias: pci:v00008086d00000886sv*sd00001315bc*sc*i*
alias: pci:v00008086d00000885sv*sd00001327bc*sc*i*
alias: pci:v00008086d00000885sv*sd00001325bc*sc*i*
alias: pci:v00008086d00000885sv*sd00001307bc*sc*i*
alias: pci:v00008086d00000885sv*sd00001305bc*sc*i*
alias: pci:v00008086d00000089sv*sd00001316bc*sc*i*
alias: pci:v00008086d00000089sv*sd00001311bc*sc*i*
alias: pci:v00008086d00000087sv*sd00001326bc*sc*i*
alias: pci:v00008086d00000087sv*sd00001321bc*sc*i*
alias: pci:v00008086d00000087sv*sd00001306bc*sc*i*
alias: pci:v00008086d00000087sv*sd00001301bc*sc*i*
alias: pci:v00008086d00000091sv*sd00005226bc*sc*i*
alias: pci:v00008086d00000091sv*sd00005225bc*sc*i*
alias: pci:v00008086d00000091sv*sd00005221bc*sc*i*
alias: pci:v00008086d00000091sv*sd00005207bc*sc*i*
alias: pci:v00008086d00000091sv*sd00005206bc*sc*i*
alias: pci:v00008086d00000091sv*sd00005205bc*sc*i*
alias: pci:v00008086d00000091sv*sd00005201bc*sc*i*
alias: pci:v00008086d00000090sv*sd00005216bc*sc*i*
alias: pci:v00008086d00000090sv*sd00005215bc*sc*i*
alias: pci:v00008086d00000090sv*sd00005211bc*sc*i*
alias: pci:v00008086d0000008Bsv*sd00005317bc*sc*i*
alias: pci:v00008086d0000008Bsv*sd00005315bc*sc*i*
alias: pci:v00008086d0000008Asv*sd00005327bc*sc*i*
alias: pci:v00008086d0000008Asv*sd00005325bc*sc*i*
alias: pci:v00008086d0000008Asv*sd00005307bc*sc*i*
alias: pci:v00008086d0000008Asv*sd00005305bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001305bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001304bc*sc*i*
alias: pci:v00008086d00000082sv*sd00004820bc*sc*i*
alias: pci:v00008086d00000085sv*sd0000C228bc*sc*i*
alias: pci:v00008086d00000085sv*sd0000C220bc*sc*i*
alias: pci:v00008086d00000082sv*sd0000C020bc*sc*i*
alias: pci:v00008086d00000085sv*sd00001316bc*sc*i*
alias: pci:v00008086d00000085sv*sd00001318bc*sc*i*
alias: pci:v00008086d00000085sv*sd00001311bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001328bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001326bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001321bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001308bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001307bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001306bc*sc*i*
alias: pci:v00008086d00000082sv*sd00001301bc*sc*i*
alias: pci:v00008086d00004239sv*sd00001316bc*sc*i*
alias: pci:v00008086d00004239sv*sd00001311bc*sc*i*
alias: pci:v00008086d00004238sv*sd00001118bc*sc*i*
alias: pci:v00008086d00004238sv*sd00001111bc*sc*i*
alias: pci:v00008086d0000422Csv*sd00001326bc*sc*i*
alias: pci:v00008086d0000422Csv*sd00001321bc*sc*i*
alias: pci:v00008086d0000422Csv*sd00001307bc*sc*i*
alias: pci:v00008086d0000422Csv*sd00001306bc*sc*i*
alias: pci:v00008086d0000422Csv*sd00001301bc*sc*i*
alias: pci:v00008086d0000422Bsv*sd00001128bc*sc*i*
alias: pci:v00008086d0000422Bsv*sd00001121bc*sc*i*
alias: pci:v00008086d0000422Bsv*sd00001108bc*sc*i*
alias: pci:v00008086d0000422Bsv*sd00001101bc*sc*i*
alias: pci:v00008086d0000423Dsv*sd00001316bc*sc*i*
alias: pci:v00008086d0000423Dsv*sd00001216bc*sc*i*
alias: pci:v00008086d0000423Dsv*sd00001311bc*sc*i*
alias: pci:v00008086d0000423Dsv*sd00001211bc*sc*i*
alias: pci:v00008086d0000423Csv*sd00001326bc*sc*i*
alias: pci:v00008086d0000423Csv*sd00001321bc*sc*i*
alias: pci:v00008086d0000423Csv*sd00001221bc*sc*i*
alias: pci:v00008086d0000423Csv*sd00001306bc*sc*i*
alias: pci:v00008086d0000423Csv*sd00001206bc*sc*i*
alias: pci:v00008086d0000423Csv*sd00001301bc*sc*i*
alias: pci:v00008086d0000423Csv*sd00001201bc*sc*i*
alias: pci:v00008086d0000423Bsv*sd00001011bc*sc*i*
alias: pci:v00008086d0000423Asv*sd00001021bc*sc*i*
alias: pci:v00008086d0000423Asv*sd00001001bc*sc*i*
alias: pci:v00008086d00004236sv*sd00001114bc*sc*i*
alias: pci:v00008086d00004236sv*sd00001014bc*sc*i*
alias: pci:v00008086d00004236sv*sd00001111bc*sc*i*
alias: pci:v00008086d00004236sv*sd00001011bc*sc*i*
alias: pci:v00008086d00004235sv*sd00001104bc*sc*i*
alias: pci:v00008086d00004235sv*sd00001004bc*sc*i*
alias: pci:v00008086d00004235sv*sd00001101bc*sc*i*
alias: pci:v00008086d00004235sv*sd00001001bc*sc*i*
alias: pci:v00008086d00004235sv*sd00001124bc*sc*i*
alias: pci:v00008086d00004235sv*sd00001024bc*sc*i*
alias: pci:v00008086d00004235sv*sd00001121bc*sc*i*
alias: pci:v00008086d00004235sv*sd00001021bc*sc*i*
alias: pci:v00008086d00004237sv*sd00001316bc*sc*i*
alias: pci:v00008086d00004237sv*sd00001216bc*sc*i*
alias: pci:v00008086d00004237sv*sd00001315bc*sc*i*
alias: pci:v00008086d00004237sv*sd00001215bc*sc*i*
alias: pci:v00008086d00004237sv*sd00001314bc*sc*i*
alias: pci:v00008086d00004237sv*sd00001214bc*sc*i*
alias: pci:v00008086d00004237sv*sd00001311bc*sc*i*
alias: pci:v00008086d00004237sv*sd00001211bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001326bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001226bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001325bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001225bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001324bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001224bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001321bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001221bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001306bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001206bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001305bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001205bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001304bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001204bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001301bc*sc*i*
alias: pci:v00008086d00004232sv*sd00001201bc*sc*i*
depends: compat,cfg80211
vermagic: 3.8.0-38-generic SMP mod_unload modversions
parm: debug:debug output mask (uint)
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm: amsdu_size_8K:enable 8K amsdu size (default 0) (int)
parm: fw_restart:restart firmware in case of error (default true) (bool)
parm: antenna_coupling:specify antenna coupling in dB (defualt: 0 dB) (int)
parm: wd_disable:Disable stuck queue watchdog timer 0=system default, 1=disable (default: 1) (int)
parm: nvm_file:NVM file name (charp)
parm: uapsd_disable:disable U-APSD functionality (default: N) (bool)
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm: power_save:enable WiFi power management (default: disable) (bool)
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
Qualquer conselho seria apreciado. Por favor, deixe-me saber se eu posso fornecer qualquer informação adicional também.