Nos últimos dois dias, minha conexão Wi-Fi é extremamente lenta. Tenho certeza de que isso é causado pelo motorista. Isso pode ser melhorado?
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"MyWiFi"
Mode:Managed Frequency:2.437 GHz Access Point: 00:18:63:FE:7A:C7
Bit Rate=58.5 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=48/70 Signal level=-62 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:6960 Missed beacon:0
eth0 no wireless extensions.
sudo lshw -class network
*-network
description: Wireless interface
product: AR9285 Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 01
serial: 74:f0:6d:34:c2:4e
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.2.0-31-generic-pae firmware=N/A ip=192.168.1.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:17 memory:d7400000-d740ffff
*-network
description: Ethernet interface
product: AR8131 Gigabit Ethernet
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:06:00.0
logical name: eth0
version: c0
serial: 48:9b:38:48:f3:ed
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI firmware=N/A latency=0 link=no multicast=yes port=twisted pair
resources: irq:51 memory:d3800000-d383ffff ioport:8000(size=128)
lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 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 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 04f2:b1bb Chicony Electronics Co., Ltd
Bus 001 Device 004: ID 0b05:1788 ASUSTek Computer, Inc.
lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18)
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 18)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)
00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)
00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 06)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 06)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 425M] (rev a1)
03:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
04:00.0 USB controller: Fresco Logic Device 1400 (rev 01)
06:00.0 Ethernet controller: Atheros Communications Inc. AR8131 Gigabit Ethernet (rev c0)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 05)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 05)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 05)
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 05)
ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 05)
ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 05)
rfkill list all
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Ok, eu tenho tido o mesmo problema e acho que descobri que estou recebendo energia excessiva, fazendo com que ele transmita mais erros, mas reduzi minha saída usando este comando no terminal e não estou brincando. / p>
sudo iwconfig wlan0 txpower 8B26
Resposta anterior Eu acho que você está em algo.
Contexto: Estou no Xubuntu 12.04 no novo Acer Aspire S7 Ultrabook. Meu wireless era louco instável, desconectando constantemente e eu tinha tempos de ping muito instáveis no google.
A primeira coisa que fiz foi instalar o driver desde o início do link . E isso não ajudou.
Em seguida, tentei isso: sudo iwconfig wlan0 txpower auto e, de repente, não estou mais desconectando e meus pings no google são muito sólidos, não variando muito fora de 12 ms de forma consistente.
Eu só espero que essa configuração persista uma reinicialização.
Eu estava tendo os mesmos problemas, mas mudar o poder de transmissão não teve efeito para mim. Eu tive que desabilitar a criptografia hw. Eu fiz
sudo modprobe -r ath9k
sudo modprobe ath9k nohwencrypt=1
Após reconectar, funcionou muito bem. Para tornar a mudança permanente, fiz isso
sudo -s
echo "options ath9k nohwcrypt=1" > /etc/modprobe.d/ath9k.conf
Após uma reinicialização, verifiquei que o Wi-Fi ainda funcionava bem.