Não é possivel acessar sites como: hotmail(outlook), yahoo, facebook

[dorchaidher]

Tentando a uma semana acessar sites como hotmail, yahoo, hotmail e tendo sérias dificuldades em acessar , na  maioria das vezes os sites até carregam , o problema começa depois que tento autenticar , dificilmente carrega e quando carrega não consigo utilizar o site , seus recursos/funcionalidades ficam como bloqueadas !!!

Detalhes do problema:
1- Consigo acessar email como Gmail, e outros sites em geral
2- meu provedor é velox e de uns dias pra cá percebi que se digito qualquer coisa errada na barra de endereços do navegador vai para um dominio como : dnserros.com.br, que eu julgo ser da concessionária de conexão.
3- tenho dualboot com o windows seven e nesse sistema os acessos estão funcionando


O que já tentei:
1- pesquisar no google
2- pesquiar outros tópicos
3-usar uma ferramenta chamada namebench para acha o melhor dns
4- trocar o dns do meu roteador e do meu modem nos menus setups dos referidos dispositivos
5- Atualizar a minha versão do sistema pra mais recente : 14.04 lts (não adiantou).

[zekkerj]

Dê mais detalhes sobre sua conexão. Qual o provedor, se usa roteador, se há algum firewall ou filtro ativo, etc.

[paschf]

Olá pessoal estou com problema parecido não acesso determinados sites. Aqui tenho o ubuntu 14.04 lts com o Firefox atualizado
acesso a Internet através de um roteador e a conexão chega nele via rádio. ...o provedor e um tal de lente

Como resolver esse problema de acesso? ??

Há não consigo enviar msg para o fórum através do meu PC também

Não configurei nenhum firewall

[Hickot]

Tentando a uma semana acessar sites como hotmail, yahoo, hotmail e tendo sérias dificuldades em acessar , na  maioria das vezes os sites até carregam , o problema começa depois que tento autenticar , dificilmente carrega e quando carrega não consigo utilizar o site , seus recursos/funcionalidades ficam como bloqueadas !!!

Detalhes do problema:
1- Consigo acessar email como Gmail, e outros sites em geral
2- meu provedor é velox e de uns dias pra cá percebi que se digito qualquer coisa errada na barra de endereços do navegador vai para um dominio como : dnserros.com.br, que eu julgo ser da concessionária de conexão.
3- tenho dualboot com o windows seven e nesse sistema os acessos estão funcionando


O que já tentei:
1- pesquisar no google
2- pesquiar outros tópicos
3-usar uma ferramenta chamada namebench para acha o melhor dns
4- trocar o dns do meu roteador e do meu modem nos menus setups dos referidos dispositivos
5- Atualizar a minha versão do sistema pra mais recente : 14.04 lts (não adiantou).

Amigo,

Isso está cheirando problema com o servidor DNS.

Faça um teste:

Abra o Terminal e digite: sudo gedit /etc/resolv.conf

Você verá um texto mais ou menos assim:

=========================================================
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
=========================================================

+ Onde está descrito:  nameserver 127.0.1.1
+ Coloque               :   nameserver 8.8.8.8


Salve o texto e faça um teste abrindo os sites que você não conseguia. Se funcionar poste aqui que eu ensinarei a reparar o problema!

[paschf]

Olá hickot ...Não funcionou esse mudança que você sugeriu....a net aqui hoje está péssima e hoje o problema ocorreu por algumas vezes com um site que até entao não havia tido problema. ...Depois voltou ao normal esse site  (www.Gmail.com )
Peguei um script para diagnóstico da rede no fórum se ajudar a resolver

########## wireless info START ##########

Report from: 10 Feb 2015 22:13 BRST -0200

Booted last: 10 Feb 2015 21:54 BRST -0200

Script from: 20 Sep 2014 23:04 UTC +0000

##### release ###########################

Distributor ID:   Ubuntu
Description:   Ubuntu 14.04.1 LTS
Release:   14.04
Codename:   trusty

##### kernel ############################

Linux 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

03:00.0 Network controller [0280]: Qualcomm Atheros AR9485 Wireless Network Adapter [168c:0032] (rev 01)
   Subsystem: Lite-On Communications Inc Device [11ad:6617]
   Kernel driver in use: ath9k

06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
   Subsystem: Acer Incorporated [ALI] Device [1025:8000]
   Kernel driver in use: r8169

##### lsusb #############################

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 007 Device 002: ID 04ca:0050 Lite-On Technology Corp.
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 04f2:b23f Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: no

##### lsmod #############################

ath9k                 164164  0
ath9k_common           13551  1 ath9k
ath9k_hw              453856  2 ath9k_common,ath9k
ath                    28698  3 ath9k_common,ath9k,ath9k_hw
mac80211              630669  1 ath9k
cfg80211              484040  3 ath,ath9k,mac80211
wmi                    19177  0

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig
#########################

eth0      Link encap:Ethernet  HWaddr <MAC 'eth0' [IF]> 
          inet6 addr: fe80::a9e:1ff:fe61:7c2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4278 errors:0 dropped:1 overruns:0 frame:0
          TX packets:3485 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3742790 (3.7 MB)  TX bytes:472792 (472.7 K)

wlan0     Link encap:Ethernet  HWaddr <MAC 'wlan0' [IF]> 
          inet addr:10.0.0.105  Bcast:10.0.0.255  Mask:255.255.255.0
          inet6 addr: fe80::5ec9:d3ff:fe1b:bbf9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1312 errors:0 dropped:0 overruns:0 frame:0
          TX packets:825 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:601298 (601.2 KB)  TX bytes:113284 (113.2 KB)


##### iwconfig##########################

eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Paschoalini" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: <MAC 'Paschoalini' [AC1]>   
          Bit Rate=54 Mb/s   Tx-Power=16 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=37/70  Signal level=-73 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:5  Invalid misc:52   Missed beacon:0

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.0.0.1        0.0.0.0         UG    0      0        0 wlan0
10.0.0.0        0.0.0.0         255.255.255.0   U     9      0        0 wlan0

##### resolv.conf #######################

nameserver 127.0.1.1

##### nm-tool ###########################

NetworkManager Tool

State: connected (global)

- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             disconnected
  Default:           no
  HW Address:        <MAC 'eth0' [IF]>

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         on

- Device: wlan0  [Paschoalini] -------------------------------------------------
  Type:              802.11 WiFi
  Driver:            ath9k
  State:             connected
  Default:           yes
  HW Address:        <MAC 'wlan0' [IF]>

  Capabilities:
    Speed:           54 Mb/s

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points (* = current AP)
    *Paschoalini:    Infra, <MAC 'Paschoalini' [AC1]>, Freq 2462 MHz, Rate 54 Mb/s, Strength 50 WEP

  IPv4 Settings:
    Address:         10.0.0.105
    Prefix:          24 (255.255.255.0)
    Gateway:         10.0.0.1

    DNS:             192.168.0.1
    DNS:             10.0.0.1

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf
###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

no-auto-default=<MAC 'eth0' [IF]>,

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/Paschoalini]] (600 root)
[connection] id=Paschoalini | type=802-11-wireless
[802-11-wireless] ssid=Paschoalini | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto

##### iw reg get ########################

Region: America/Sao_Paulo (based on set time zone)

country 00:
   (2402 - 2472 @ 40), (3, 20)
   (2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
   (2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
   (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
   (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS

##### iwlist channels ###################

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
          Current Frequency:2.462 GHz (Channel 11)

##### iwlist scan #######################

Channel occupancy:

      1   APs on   Frequency:2.462 GHz (Channel 11)

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

wlan0     Scan completed :
          Cell 01 - Address: <MAC 'Paschoalini' [AC1]>
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=39/70  Signal level=-71 dBm 
                    Encryption key:on
                    ESSID:"Paschoalini"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              12 Mb/s; 24 Mb/s; 36 Mb/s
                    Bit Rates:9 Mb/s; 18 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000045f0333b
                    Extra: Last beacon: 56ms ago

#### module infos ######################

[ath9k]
filename:       /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
license:        Dual BSD/GPL
description:    Support for Atheros 802.11n wireless LAN cards.
author:         Atheros Communications
srcversion:     EABAC052C3DF339FA6E716C
depends:        ath9k_hw,mac80211,ath9k_common,cfg80211,ath
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
sig_hashalgo:   sha512
parm:           debug:Debugging mask (uint)
parm:           nohwcrypt:Disable hardware encryption (int)
parm:           blink:Enable LED blink on activity (int)
parm:           btcoex_enable:Enable wifi-BT coexistence (int)
parm:           bt_ant_diversity:Enable WLAN/BT RX antenna diversity (int)
parm:           ps_enable:Enable WLAN PowerSave (int)

[ath9k_common]
filename:       /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko
license:        Dual BSD/GPL
description:    Shared library for Atheros wireless 802.11n LAN cards.
author:         Atheros Communications
srcversion:     5ED2DF2BD124A3813829DA8
depends:        ath,ath9k_hw
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
sig_hashalgo:   sha512

[ath9k_hw]
filename:       /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko
license:        Dual BSD/GPL
description:    Support for Atheros 802.11n wireless LAN cards.
author:         Atheros Communications
srcversion:     94B3813AF84C49B115229AD
depends:        ath
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
sig_hashalgo:   sha512

[ath]
filename:       /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/ath/ath.ko
license:        Dual BSD/GPL
description:    Shared library for Atheros wireless LAN cards.
author:         Atheros Communications
srcversion:     88A67C5359B02C5A710AFCF
depends:        cfg80211
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
sig_hashalgo:   sha512

[mac80211]
filename:       /lib/modules/3.13.0-45-generic/kernel/net/mac80211/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
srcversion:     385697223F8285F67C93A06
depends:        cfg80211
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
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/3.13.0-45-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     C2478077E22138832B71659
depends:       
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
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 #################

[ath9k]
blink: 0
bt_ant_diversity: 0
btcoex_enable: 0
nohwcrypt: 0
ps_enable: 0

[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
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

[/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 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x168c:0x0032 (ath9k)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

##### dmesg #############################

[   24.121857] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 2 times)
[   56.516160] wlan0: authenticate with <MAC 'Paschoalini' [AC1]>
[   56.544949] wlan0: send auth to <MAC 'Paschoalini' [AC1]> (try 1/3)
[   56.547071] wlan0: authenticated
[   56.547421] ath9k 0000:03:00.0 wlan0: disabling HT/VHT due to WEP/TKIP use
[   56.547430] ath9k 0000:03:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[   56.547434] ath9k 0000:03:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[   56.548924] wlan0: associate with <MAC 'Paschoalini' [AC1]> (try 1/3)
[   56.553874] wlan0: RX AssocResp from <MAC 'Paschoalini' [AC1]> (capab=0x431 status=0 aid=5)
[   56.554268] wlan0: associated
[   56.554328] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  481.323775] wlan0: deauthenticating from <MAC 'Paschoalini' [AC1]> by local choice (reason=3)
[  482.334296] wlan0: authenticate with <MAC 'Paschoalini' [AC1]>
[  482.352063] wlan0: send auth to <MAC 'Paschoalini' [AC1]> (try 1/3)
[  482.354308] wlan0: authenticated
[  482.354761] ath9k 0000:03:00.0 wlan0: disabling HT/VHT due to WEP/TKIP use
[  482.354770] ath9k 0000:03:00.0 wlan0: disabling HT as WMM/QoS is not supported

[  482.354775] ath9k 0000:03:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[  482.356151] wlan0: associate with <MAC 'Paschoalini' [AC1]> (try 1/3)
[  482.358759] wlan0: RX AssocResp from <MAC 'Paschoalini' [AC1]> (capab=0x431 status=0 aid=5)
[  482.359189] wlan0: associated
######## wireless info END ############

[Hickot]

Olá hickot ...Não funcionou esse mudança que você sugeriu....a net aqui hoje está péssima e hoje o problema ocorreu por algumas vezes com um site que até entao não havia tido problema. ...Depois voltou ao normal esse site  (www.Gmail.com )
Peguei um script para diagnóstico da rede no fórum se ajudar a resolver

########## wireless info START ##########

Report from: 10 Feb 2015 22:13 BRST -0200

Booted last: 10 Feb 2015 21:54 BRST -0200

Script from: 20 Sep 2014 23:04 UTC +0000

##### release ###########################

Distributor ID:   Ubuntu
Description:   Ubuntu 14.04.1 LTS
Release:   14.04
Codename:   trusty

##### kernel ############################

Linux 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

03:00.0 Network controller [0280]: Qualcomm Atheros AR9485 Wireless Network Adapter [168c:0032] (rev 01)
   Subsystem: Lite-On Communications Inc Device [11ad:6617]
   Kernel driver in use: ath9k

06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
   Subsystem: Acer Incorporated [ALI] Device [1025:8000]
   Kernel driver in use: r8169

##### lsusb #############################

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 007 Device 002: ID 04ca:0050 Lite-On Technology Corp.
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 04f2:b23f Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: no

##### lsmod #############################

ath9k                 164164  0
ath9k_common           13551  1 ath9k
ath9k_hw              453856  2 ath9k_common,ath9k
ath                    28698  3 ath9k_common,ath9k,ath9k_hw
mac80211              630669  1 ath9k
cfg80211              484040  3 ath,ath9k,mac80211
wmi                    19177  0

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig
#########################

eth0      Link encap:Ethernet  HWaddr <MAC 'eth0' [IF]> 
          inet6 addr: fe80::a9e:1ff:fe61:7c2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4278 errors:0 dropped:1 overruns:0 frame:0
          TX packets:3485 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3742790 (3.7 MB)  TX bytes:472792 (472.7 K)

wlan0     Link encap:Ethernet  HWaddr <MAC 'wlan0' [IF]> 
          inet addr:10.0.0.105  Bcast:10.0.0.255  Mask:255.255.255.0
          inet6 addr: fe80::5ec9:d3ff:fe1b:bbf9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1312 errors:0 dropped:0 overruns:0 frame:0
          TX packets:825 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:601298 (601.2 KB)  TX bytes:113284 (113.2 KB)


##### iwconfig##########################

eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Paschoalini" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: <MAC 'Paschoalini' [AC1]>   
          Bit Rate=54 Mb/s   Tx-Power=16 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=37/70  Signal level=-73 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:5  Invalid misc:52   Missed beacon:0

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.0.0.1        0.0.0.0         UG    0      0        0 wlan0
10.0.0.0        0.0.0.0         255.255.255.0   U     9      0        0 wlan0

##### resolv.conf #######################

nameserver 127.0.1.1

##### nm-tool ###########################

NetworkManager Tool

State: connected (global)

- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             disconnected
  Default:           no
  HW Address:        <MAC 'eth0' [IF]>

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         on

- Device: wlan0  [Paschoalini] -------------------------------------------------
  Type:              802.11 WiFi
  Driver:            ath9k
  State:             connected
  Default:           yes
  HW Address:        <MAC 'wlan0' [IF]>

  Capabilities:
    Speed:           54 Mb/s

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points (* = current AP)
    *Paschoalini:    Infra, <MAC 'Paschoalini' [AC1]>, Freq 2462 MHz, Rate 54 Mb/s, Strength 50 WEP

  IPv4 Settings:
    Address:         10.0.0.105
    Prefix:          24 (255.255.255.0)
    Gateway:         10.0.0.1

    DNS:             192.168.0.1
    DNS:             10.0.0.1

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf
###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

no-auto-default=<MAC 'eth0' [IF]>,

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/Paschoalini]] (600 root)
[connection] id=Paschoalini | type=802-11-wireless
[802-11-wireless] ssid=Paschoalini | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto

##### iw reg get ########################

Region: America/Sao_Paulo (based on set time zone)

country 00:
   (2402 - 2472 @ 40), (3, 20)
   (2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
   (2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
   (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
   (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS

##### iwlist channels ###################

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
          Current Frequency:2.462 GHz (Channel 11)

##### iwlist scan #######################

Channel occupancy:

      1   APs on   Frequency:2.462 GHz (Channel 11)

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

wlan0     Scan completed :
          Cell 01 - Address: <MAC 'Paschoalini' [AC1]>
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=39/70  Signal level=-71 dBm 
                    Encryption key:on
                    ESSID:"Paschoalini"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              12 Mb/s; 24 Mb/s; 36 Mb/s
                    Bit Rates:9 Mb/s; 18 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000045f0333b
                    Extra: Last beacon: 56ms ago

#### module infos ######################

[ath9k]
filename:       /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
license:        Dual BSD/GPL
description:    Support for Atheros 802.11n wireless LAN cards.
author:         Atheros Communications
srcversion:     EABAC052C3DF339FA6E716C
depends:        ath9k_hw,mac80211,ath9k_common,cfg80211,ath
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
sig_hashalgo:   sha512
parm:           debug:Debugging mask (uint)
parm:           nohwcrypt:Disable hardware encryption (int)
parm:           blink:Enable LED blink on activity (int)
parm:           btcoex_enable:Enable wifi-BT coexistence (int)
parm:           bt_ant_diversity:Enable WLAN/BT RX antenna diversity (int)
parm:           ps_enable:Enable WLAN PowerSave (int)

[ath9k_common]
filename:       /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko
license:        Dual BSD/GPL
description:    Shared library for Atheros wireless 802.11n LAN cards.
author:         Atheros Communications
srcversion:     5ED2DF2BD124A3813829DA8
depends:        ath,ath9k_hw
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
sig_hashalgo:   sha512

[ath9k_hw]
filename:       /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko
license:        Dual BSD/GPL
description:    Support for Atheros 802.11n wireless LAN cards.
author:         Atheros Communications
srcversion:     94B3813AF84C49B115229AD
depends:        ath
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
sig_hashalgo:   sha512

[ath]
filename:       /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/ath/ath.ko
license:        Dual BSD/GPL
description:    Shared library for Atheros wireless LAN cards.
author:         Atheros Communications
srcversion:     88A67C5359B02C5A710AFCF
depends:        cfg80211
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
sig_hashalgo:   sha512

[mac80211]
filename:       /lib/modules/3.13.0-45-generic/kernel/net/mac80211/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
srcversion:     385697223F8285F67C93A06
depends:        cfg80211
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
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/3.13.0-45-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     C2478077E22138832B71659
depends:       
intree:         Y
vermagic:       3.13.0-45-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        34:99:21:39:F3:DA:40:B6:20:BD:55:17:59:7B:A8:5A:F5:79:7C:9A
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 #################

[ath9k]
blink: 0
bt_ant_diversity: 0
btcoex_enable: 0
nohwcrypt: 0
ps_enable: 0

[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
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

[/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 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x168c:0x0032 (ath9k)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

##### dmesg #############################

[   24.121857] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 2 times)
[   56.516160] wlan0: authenticate with <MAC 'Paschoalini' [AC1]>
[   56.544949] wlan0: send auth to <MAC 'Paschoalini' [AC1]> (try 1/3)
[   56.547071] wlan0: authenticated
[   56.547421] ath9k 0000:03:00.0 wlan0: disabling HT/VHT due to WEP/TKIP use
[   56.547430] ath9k 0000:03:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[   56.547434] ath9k 0000:03:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[   56.548924] wlan0: associate with <MAC 'Paschoalini' [AC1]> (try 1/3)
[   56.553874] wlan0: RX AssocResp from <MAC 'Paschoalini' [AC1]> (capab=0x431 status=0 aid=5)
[   56.554268] wlan0: associated
[   56.554328] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  481.323775] wlan0: deauthenticating from <MAC 'Paschoalini' [AC1]> by local choice (reason=3)
[  482.334296] wlan0: authenticate with <MAC 'Paschoalini' [AC1]>
[  482.352063] wlan0: send auth to <MAC 'Paschoalini' [AC1]> (try 1/3)
[  482.354308] wlan0: authenticated
[  482.354761] ath9k 0000:03:00.0 wlan0: disabling HT/VHT due to WEP/TKIP use
[  482.354770] ath9k 0000:03:00.0 wlan0: disabling HT as WMM/QoS is not supported

[  482.354775] ath9k 0000:03:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[  482.356151] wlan0: associate with <MAC 'Paschoalini' [AC1]> (try 1/3)
[  482.358759] wlan0: RX AssocResp from <MAC 'Paschoalini' [AC1]> (capab=0x431 status=0 aid=5)
[  482.359189] wlan0: associated
######## wireless info END ############

Ok,

Faça um teste então, altere a taxa de MTU para 1400 de sua conexão Wireless(vi que é a sua conexão costumeira)... Eu tive alguns amigos que estavam com um problema um pouco parecido e resolveu alterando essa taxa.

[paschf]

Olá hickot ....yeahhhhhhhhhhh funcionou !!! Alterei a taxa de mtu para 1400 e consegui acessar os sites.

Você tem alguma idéia porque era essa taxa maledita que afetava esses sites ??

Muito obrigado pela atenção e ajuda.

[zekkerj]

Se vc usa conexão ADSL com PPPoE, o cabeçalho PPP "gasta" 8 bytes adicionais, o que faz com que o MTU caia de 1500 para 1492 bytes.
Se usa conexão VPN, os cabeçalhos da VPN podem gastar entre 20 e 40 bytes, sendo comum que o MTU caia para 1460 bytes.
O valor de 1400 é uma estimativa "generosa" que acomoda esses valores.

O programa "tracepath" pode ser usado para determinar o valor ideal de MTU para sua conexão. Ex:

tracepath -n -l 1500 www.hotmail.com # OBS: o segundo parâmetro é um "L" minúsculo.