Eu tenho lutado com isso há algum tempo e não tenho ideia de como consertar isso. Eu li o inúmeros outros posts sobre este tema, mas nenhuma das soluções me ajudou.
Então aqui está a versão curta do meu problema: eu posso procurar redes, mas não consigo me conectar.
Eu consegui conectar antes, mas a intensidade do sinal era muito fraca. Uma vez que mudei mais a máquina do roteador (< 3 ft), não consigo mais me conectar.
Aqui está a saída do script sem fio:
########## wireless info START ##########
Report from: 12 Mar 2016 18:16 CST -0600
Booted last: 12 Mar 2016 18:14 CST -0600
Script from: 27 Sep 2015 00:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.04.4 LTS
Release: 14.04
Codename: trusty
##### kernel ############################
Linux 3.19.0-51-generic #58~14.04.1-Ubuntu SMP Fri Feb 26 22:02:58 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro
##### desktop ###########################
Ubuntu
##### lspci #############################
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I218-V [8086:15a1]
Subsystem: ASUSTeK Computer Inc. Device [1043:85c4]
Kernel driver in use: e1000e
03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev bb)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:4070]
Kernel driver in use: iwlwifi
##### lsusb #############################
Bus 004 Device 002: ID 8087:8001 Intel Corp.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:8009 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 1532:0502 Razer USA, Ltd
Bus 001 Device 005: ID 0b38:0010 Gear Head 107-Key Keyboard
Bus 001 Device 004: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 003: ID 8087:07dc Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
eeepc_wmi 16384 0
asus_wmi 24576 1 eeepc_wmi
sparse_keymap 16384 1 asus_wmi
mxm_wmi 16384 0
iwlmvm 278528 0
mac80211 712704 1 iwlmvm
iwlwifi 192512 1 iwlmvm
cfg80211 524288 3 iwlwifi,mac80211,iwlmvm
video 20480 1 asus_wmi
wmi 20480 2 mxm_wmi,asus_wmi
##### interfaces ########################
auto lo
iface lo inet loopback
iface em1 inet dhcp
auto wlan0
iface wlan0 inet dhcp
wpa-ssid "Ministry of Magic"
wpa-psk 709e6f754d96bfdaec99faa1ead659a13843c7f3a26e68f517a40ae7631fa00b
##### ifconfig ##########################
docker0 Link encap:Ethernet HWaddr <MAC 'docker0' [IF]>
inet addr:172.17.0.1 Bcast:0.0.0.0 Mask:255.255.0.0
inet6 addr: fe80::<IP6 'docker0' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8446 errors:0 dropped:0 overruns:0 frame:0
TX packets:12294 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:472437 (472.4 KB) TX bytes:24829178 (24.8 MB)
em1 Link encap:Ethernet HWaddr <MAC 'em1' [IF]>
inet addr:192.168.2.8 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::<IP6 'em1' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17337 errors:0 dropped:0 overruns:0 frame:0
TX packets:8782 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:25358404 (25.3 MB) TX bytes:678218 (678.2 KB)
Interrupt:20 Memory:f7200000-f7220000
veth19afb3d Link encap:Ethernet HWaddr <MAC 'veth19afb3d' [IF]>
inet6 addr: fe80::<IP6 'veth19afb3d' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3808 errors:0 dropped:0 overruns:0 frame:0
TX packets:5639 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:259348 (259.3 KB) TX bytes:11511336 (11.5 MB)
veth8beecb5 Link encap:Ethernet HWaddr <MAC 'veth8beecb5' [IF]>
inet6 addr: fe80::<IP6 'veth8beecb5' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22 errors:0 dropped:0 overruns:0 frame:0
TX packets:162 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2643 (2.6 KB) TX bytes:29363 (29.3 KB)
vethf278c02 Link encap:Ethernet HWaddr <MAC 'vethf278c02' [IF]>
inet6 addr: fe80::<IP6 'vethf278c02' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4616 errors:0 dropped:0 overruns:0 frame:0
TX packets:6823 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:328690 (328.6 KB) TX bytes:13343754 (13.3 MB)
wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
##### iwconfig ##########################
veth8beecb5 no wireless extensions.
docker0 no wireless extensions.
veth19afb3d no wireless extensions.
vethf278c02 no wireless extensions.
lo no wireless extensions.
em1 no wireless extensions.
wlan0 IEEE 802.11abg ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.2.1 0.0.0.0 UG 0 0 0 em1
172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
192.168.2.0 0.0.0.0 255.255.255.0 U 1 0 0 em1
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Wicd
Running:
root 3646 1 0 18:16 ? 00:00:00 NetworkManager
##### NetworkManager info ###############
NetworkManager Tool
State: connected (global)
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: iwlwifi
State: unavailable
Default: no
HW Address: <MAC 'wlan0' [IF]>
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
- Device: em1 [Ifupdown (em1)] ------------------------------------------------
Type: Wired
Driver: e1000e
State: connected
Default: yes
HW Address: <MAC 'em1' [IF]>
Capabilities:
Carrier Detect: yes
Speed: 1000 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 192.168.2.8
Prefix: 24 (255.255.255.0)
Gateway: 192.168.2.1
DNS: 192.168.2.1
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=true
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/Foobar]] (600 root)
[connection] id=Foobar | type=802-11-wireless
[802-11-wireless] ssid=Foobar | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Ministry of Magic]] (600 root)
[connection] id=Ministry of Magic | type=802-11-wireless
[802-11-wireless] ssid=Ministry of Magic | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=ignore
##### iw reg get ########################
'iw' is not installed (package "iw").
##### iwlist channels ###################
veth8beecb5 no frequency information.
docker0 no frequency information.
veth19afb3d no frequency information.
vethf278c02 no frequency information.
lo no frequency information.
em1 no frequency information.
wlan0 32 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Channel 36 : 5.18 GHz
Channel 40 : 5.2 GHz
Channel 44 : 5.22 GHz
Channel 48 : 5.24 GHz
Channel 52 : 5.26 GHz
Channel 56 : 5.28 GHz
Channel 60 : 5.3 GHz
Channel 64 : 5.32 GHz
Channel 100 : 5.5 GHz
Channel 104 : 5.52 GHz
Channel 108 : 5.54 GHz
Channel 112 : 5.56 GHz
Channel 116 : 5.58 GHz
Channel 120 : 5.6 GHz
Channel 124 : 5.62 GHz
Channel 128 : 5.64 GHz
Channel 132 : 5.66 GHz
Channel 136 : 5.68 GHz
Channel 140 : 5.7 GHz
##### iwlist scan #######################
veth8beecb5 Interface doesn't support scanning.
docker0 Interface doesn't support scanning.
veth19afb3d Interface doesn't support scanning.
vethf278c02 Interface doesn't support scanning.
lo Interface doesn't support scanning.
em1 Interface doesn't support scanning.
Channel occupancy:
1 APs on Frequency:2.437 GHz (Channel 6)
1 APs on Frequency:2.462 GHz (Channel 11)
wlan0 Scan completed :
Cell 01 - Address: <MAC 'NETGEAR02-arlo_247004' [AC1]>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=31/70 Signal level=-79 dBm
Encryption key:on
ESSID:"NETGEAR02-arlo_247004"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000100cb753a
Extra: Last beacon: 3212ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 02 - Address: <MAC 'AT<MAC address>T' [AC2]>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=23/70 Signal level=-87 dBm
Encryption key:on
ESSID:"AT&T"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000016997b981c7
Extra: Last beacon: 3088ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
##### module infos ######################
[iwlmvm]
filename: /lib/modules/3.19.0-51-generic/kernel/drivers/net/wireless/iwlwifi/mvm/iwlmvm.ko
license: GPL
author: Copyright(c) 2003- 2014 Intel Corporation <[email protected]>
version: in-tree:
description: The new Intel(R) wireless AGN driver for Linux
srcversion: 4375FD8600770B0C2A7E11D
depends: iwlwifi,mac80211,cfg80211
intree: Y
vermagic: 3.19.0-51-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: E0:D6:4E:73:6E:B3:B1:A2:3E:2E:4A:9E:A9:B2:F2:73:99:A4:1C:AF
sig_hashalgo: sha512
parm: init_dbg:set to true to debug an ASSERT in INIT fw (default: false (bool)
parm: power_scheme:power management scheme: 1-active, 2-balanced, 3-low power, default: 2 (int)
[mac80211]
filename: /lib/modules/3.19.0-51-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 1261743510839D352D1D895
depends: cfg80211
intree: Y
vermagic: 3.19.0-51-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: E0:D6:4E:73:6E:B3:B1:A2:3E:2E:4A:9E:A9:B2:F2:73:99:A4:1C:AF
sig_hashalgo: sha512
parm: minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
[iwlwifi]
filename: /lib/modules/3.19.0-51-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
license: GPL
author: Copyright(c) 2003- 2014 Intel Corporation <[email protected]>
version: in-tree:
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-7265D-10.ucode
firmware: iwlwifi-7265-10.ucode
firmware: iwlwifi-3165-10.ucode
firmware: iwlwifi-3160-10.ucode
firmware: iwlwifi-7260-10.ucode
firmware: iwlwifi-8000-10.ucode
srcversion: B470AF663F8CCFC606AA966
depends: cfg80211
intree: Y
vermagic: 3.19.0-51-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: E0:D6:4E:73:6E:B3:B1:A2:3E:2E:4A:9E:A9:B2:F2:73:99:A4:1C:AF
sig_hashalgo: sha512
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 (default: 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: Y) (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)
parm: fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
[cfg80211]
filename: /lib/modules/3.19.0-51-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: EF182B558008C23DD85EF03
depends:
intree: Y
vermagic: 3.19.0-51-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: E0:D6:4E:73:6E:B3:B1:A2:3E:2E:4A:9E:A9:B2:F2:73:99:A4:1C:AF
sig_hashalgo: sha512
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[iwlmvm]
init_dbg: N
power_scheme: 2
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500
[iwlwifi]
11n_disable: 1
amsdu_size_8K: 0
antenna_coupling: 0
bt_coex_active: Y
fw_monitor: N
fw_restart: Y
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
swcrypto: 1
uapsd_disable: Y
wd_disable: 1
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
lp
rtc
##### modprobe options ##################
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
options iwlwifi 11n_disable=1 swcrypto=1
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x8086:0x08b1 (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #############################
[ 3.928280] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 3.965705] iwlwifi 0000:03:00.0: L1 Disabled - LTR Enabled (repeated 2 times)
[ 3.980997] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 7.376255] wlan0: authenticate with <MAC address>
[ 7.376259] wlan0: AP advertised VHT without HT, disabling both
[ 7.378824] wlan0: direct probe to <MAC address> (try 1/3)
[ 7.582464] wlan0: direct probe to <MAC address> (try 2/3)
[ 7.786635] wlan0: direct probe to <MAC address> (try 3/3)
[ 7.989767] wlan0: authentication with <MAC address> timed out
[ 179.216032] IPv6: ADDRCONF(NETDEV_UP): em1: link is not ready
[ 181.927885] e1000e: em1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 181.927915] IPv6: ADDRCONF(NETDEV_CHANGE): em1: link becomes ready
[ 233.979635] IPv6: ADDRCONF(NETDEV_UP): docker0: link is not ready
[ 234.076729] device veth8beecb5 entered promiscuous mode
[ 234.076789] IPv6: ADDRCONF(NETDEV_UP): veth8beecb5: link is not ready
[ 234.076792] docker0: port 1(veth8beecb5) entered forwarding state (repeated 2 times)
[ 234.077086] IPv6: ADDRCONF(NETDEV_CHANGE): docker0: link becomes ready
[ 234.077613] device vethf278c02 entered promiscuous mode
[ 234.077669] IPv6: ADDRCONF(NETDEV_UP): vethf278c02: link is not ready
[ 234.077672] docker0: port 2(vethf278c02) entered forwarding state (repeated 2 times)
[ 234.148660] eth0: renamed from vethcd3ad11
[ 234.173934] IPv6: ADDRCONF(NETDEV_CHANGE): veth8beecb5: link becomes ready
[ 234.202216] device veth19afb3d entered promiscuous mode
[ 234.202387] IPv6: ADDRCONF(NETDEV_UP): veth19afb3d: link is not ready
[ 234.202391] docker0: port 3(veth19afb3d) entered forwarding state (repeated 2 times)
[ 234.349063] eth0: renamed from veth58d4259
[ 234.360693] IPv6: ADDRCONF(NETDEV_CHANGE): veth19afb3d: link becomes ready
[ 234.924870] docker0: port 2(vethf278c02) entered disabled state
[ 234.958503] eth0: renamed from veth3911140
[ 234.973242] IPv6: ADDRCONF(NETDEV_CHANGE): vethf278c02: link becomes ready
[ 234.973277] docker0: port 2(vethf278c02) entered forwarding state (repeated 2 times)
[ 249.115836] docker0: port 1(veth8beecb5) entered forwarding state
[ 249.243874] docker0: port 3(veth19afb3d) entered forwarding state
[ 250.012136] docker0: port 2(vethf278c02) entered forwarding state
########## wireless info END ############
Já experimentei os vários encantamentos de options em /etc/modprobe/iwlwifi.conf e eles não parecem ajudar. Atualmente, este arquivo se parece com:
# /etc/modprobe.d/iwlwifi.conf
# iwlwifi will dyamically load either iwldvm or iwlmvm depending on the
# microcode file installed on the system. When removing iwlwifi, first
# remove the iwl?vm module and then iwlwifi.
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
options iwlwifi 11n_disable=1
Qualquer ajuda seria muito apreciada!
Atualizar
Eu fui em frente e atualizei para 15.10 para ver se um kernel mais novo ajudaria as coisas. O cartão ainda se comporta da mesma forma.
Por uma sugestão no ubuntuforums.org , fui em frente e tentei o firmware backported ( 17), como deveria melhorar a confiabilidade com este cartão. Mais uma vez sem melhora ...