Então, basicamente, perdi os últimos dois dias tentando descobrir como estabilizar minha conexão WiFi. A Ethernet funciona perfeitamente, mas quando tento me conectar à minha rede sem fio, meu laptop permanece conectado por cerca de 10 segundos, após o que fica preso em um loop de desconexão de conexão miserável. Conselhos seriam muito apreciados.
A saída do script sem fio é a seguinte:
########## wireless info START ##########
Report from: 06 Apr 2015 18:45 IDT +0300
Booted last: 06 Apr 2015 18:42 IDT +0300
Script from: 20 Sep 2014 23:04 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.10
Release: 14.10
Codename: utopic
##### kernel ############################
Linux 3.16.0-33-generic #44-Ubuntu SMP Thu Mar 12 12:19:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection I217-LM [8086:153a] (rev 04)
Subsystem: Lenovo ThinkPad T440p [17aa:220e]
Kernel driver in use: e1000e
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8192EE PCIe Wireless Network Adapter [10ec:818b]
Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:001b]
Kernel driver in use: r8192ee
##### lsusb #############################
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 138a:0017 Validity Sensors, Inc.
Bus 003 Device 004: ID 04f2:b39a Chicony Electronics Co., Ltd
Bus 003 Device 003: ID 0bda:8761 Realtek Semiconductor Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
r8192ee 594758 0
mac80211 660592 1 r8192ee
cfg80211 510218 2 mac80211,r8192ee
wmi 19193 0
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF]>
inet addr:10.0.0.8 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::6af7:28ff:fe34:61e9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:14287 errors:0 dropped:0 overruns:0 frame:0
TX packets:9634 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:18343870 (18.3 MB) TX bytes:875727 (875.7 KB)
Interrupt:20 Memory:f0600000-f0620000
wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF]>
inet6 addr: fe80::aeb5:7dff:fe71:5569/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:34 errors:0 dropped:0 overruns:0 frame:0
TX packets:135 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4821 (4.8 KB) TX bytes:18054 (18.0 KB)
##### iwconfig ##########################
eth0 no wireless extensions.
lo 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
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.0.0.138 0.0.0.0 UG 0 0 0 eth0
10.0.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0
##### resolv.conf #######################
nameserver 127.0.1.1
##### nm-tool ###########################
NetworkManager Tool
State: connected (global)
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: r8192ee
State: disconnected
Default: no
HW Address: <MAC 'wlan0' [IF]>
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
Perla: Infra, <MAC 'Perla' [AN1]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 80 WPA2
HOTFiber-A9BA: Infra, <MAC 'HOTFiber-A9BA' [AN2]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 60 WPA WPA2
vampirB76564: Infra, <MAC 'vampirB76564' [AN3]>, Freq 2467 MHz, Rate 54 Mb/s, Strength 60 WPA2
HOTBOX-6E64: Infra, <MAC 'HOTBOX-6E64' [AN4]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 54 WPA WPA2
HOTBOX-12F6: Infra, <MAC 'HOTBOX-12F6' [AN5]>, Freq 2452 MHz, Rate 54 Mb/s, Strength 54 WPA WPA2
vampir: Infra, <MAC 'vampir' [AN6]>, Freq 2467 MHz, Rate 54 Mb/s, Strength 54 WPA2
bpointer: Infra, <MAC 'bpointer' [AN7]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 47 WPA WPA2
- Device: eth0 [Wired connection 1] -------------------------------------------
Type: Wired
Driver: e1000e
State: connected
Default: yes
HW Address: <MAC 'eth0' [IF]>
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 10.0.0.8
Prefix: 24 (255.255.255.0)
Gateway: 10.0.0.138
DNS: 10.0.0.138
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/I love Meretz]] (600 root)
[connection] id=I love Meretz | type=802-11-wireless
[802-11-wireless] ssid=I love Meretz | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: Asia/Jerusalem (based on set time zone)
country IN: DFS-UNSET
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5735 - 5835 @ 40), (N/A, 20)
##### iwlist channels ###################
eth0 no frequency information.
lo no frequency information.
wlan0 13 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
##### iwlist scan #######################
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlan0 No scan results
##### module infos ######################
[r8192ee]
filename: /lib/modules/3.16.0-33-generic/kernel/drivers/staging/rtl8192ee/r8192ee.ko
firmware: rtlwifi/rtl8192eefw.bin
description: Realtek 8192E 802.11n PCI wireless
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
srcversion: 046553152F8274C9D21FCAC
depends: mac80211,cfg80211
staging: Y
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 27:43:73:00:F8:EE:18:3C:88:11:43:4F:EB:7F:D9:5F:C6:87:82:EC
sig_hashalgo: sha512
parm: swlps:bool
parm: swenc:using hardware crypto (default 0 [hardware])
(bool)
parm: ips:using no link power save (default 1 is open)
(bool)
parm: fwlps:using linked fw control power save (default 1 is open)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
[mac80211]
filename: /lib/modules/3.16.0-33-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 5410C94462FA26A0A3F256C
depends: cfg80211
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 27:43:73:00:F8:EE:18:3C:88:11:43:4F:EB:7F:D9:5F:C6:87:82:EC
sig_hashalgo: sha512
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)
[cfg80211]
filename: /lib/modules/3.16.0-33-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 4A525D9D32B0C6D120CA547
depends:
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 27:43:73:00:F8:EE:18:3C:88:11:43:4F:EB:7F:D9:5F:C6:87:82:EC
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 #################
[r8192ee]
debug: 1
fwlps: Y
ips: Y
swenc: N
swlps: N
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
probe_wait_ms: 500
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
lp
##### 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
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
[/etc/modprobe.d/modesetting.conf]
options cirrus modeset=1
options mgag200 modeset=1
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x8086:0x153a (e1000e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10ec:0x818b (r8192ee)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #############################
[ 4.440569] r8192ee: module is from the staging directory, the quality is unknown, you have been warned.
[ 4.460486] rtlwifi: wireless switch is on
[ 4.460609] r8192ee 0000:03:00.0: irq 48 for MSI/MSI-X
[ 5.158154] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 6.007283] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[ 6.160600] wlan0: authenticate with <MAC address>
[ 6.177261] wlan0: send auth to <MAC address> (try 1/3)
[ 6.178881] wlan0: authenticated
[ 6.180581] wlan0: associate with <MAC address> (try 1/3)
[ 6.184171] wlan0: RX AssocResp from <MAC address> (capab=0x411 status=0 aid=4)
[ 6.194747] wlan0: associated
[ 6.194755] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 27.211404] wlan0: Connection to AP <MAC address> lost
[ 28.277336] wlan0: authenticate with <MAC address>
[ 28.310547] wlan0: send auth to <MAC address> (try 1/3)
[ 28.413142] wlan0: send auth to <MAC address> (try 2/3)
[ 28.517259] wlan0: send auth to <MAC address> (try 3/3)
[ 28.621429] wlan0: authentication with <MAC address> timed out
########## wireless info END ############
Como os módulos estão no diretório temporário, eles provavelmente são versões anteriores. Eu tentaria backports
sudo apt-get install build-essential linux-headers-generic
wget -N -t 5 -T 10 https://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.19-rc1/backports-3.19-rc1-1.tar.xz
tar -xf backports-3.19-rc1-1.tar.xz
cd ~/backports-3.19-rc1-1
make defconfig-rtlwifi
make
sudo make installReinicie