WiFi super slow after 14.04 update on Toshiba Satalite M-55

Question

I updated my Toshiba Satalite M-55 laptop with Lubuntu 14.04 but after update I have super slow or no WiFi. This is what I have when I type $ iwconfig:

iwconfig

wlan0     IEEE 802.11bg  ESSID:"gogetter"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:25:9C:D9:FC:74   
          Bit Rate=11 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-38 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:3  Invalid misc:169   Missed beacon:0

lo        no wireless extensions.

eth0      no wireless extensions.

But lspci sees this:

lspci

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD/ATI] RC410 Host Bridge (rev 01)
00:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RC4xx/RS4xx PCI Bridge [int gfx]
00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RC4xx/RS4xx PCI Express Port 1
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB Host Controller (rev 80)
00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB Host Controller (rev 80)
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB2 Host Controller (rev 80)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 SMBus Controller (rev 81)
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 IDE Controller (rev 80)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 PCI-ISA Bridge (rev 80)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 PCI-PCI Bridge (rev 80)
00:14.5 Multimedia audio controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB400 AC'97 Audio Controller (rev 80)
00:14.6 Modem: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB400 AC'97 Modem Controller (rev 80)
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RC410M [Mobility Radeon Xpress 200M]
04:02.0 Ethernet controller: Qualcomm Atheros AR2413/AR2414 Wireless Network Adapter [AR5005G(S) 802.11bg] (rev 01)
04:04.0 CardBus bridge: ENE Technology Inc CB1410 Cardbus Controller (rev 01)
04:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter (rev 10)

It was working fine with Zubuntu 12.04. Can you please help? Thanks!

Please run the script that is in the accepted answer in the link below so we may see the information needed to help diagnose the issue. http://askubuntu.com/questions/425155/my-wireless-wifi-connection-does-not-work-what-can-i-do — Wild Man, Jul 24 '14 at 02:55
The last half of the output is missing? did you enter your password when asked? — Wild Man, Jul 25 '14 at 02:58
Im sorry, I just noticed your post about half of the output is missing. And no, it did not ask me to log in or a password. What do you suggest I do? — MoRent, Jul 25 '14 at 14:07

Wild Man · Accepted Answer · 2014-07-25T03:19:41.047

1

Do:

echo "options ath5k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath5k.conf
sudo modprobe -rfv ath5k
sudo modprobe -v ath5k

Change the encryption to just wpa2 (CCMP)(AES) not (TKIP) if you have that option it will work best.

Change the channel to 1 or 11 they usually work best. Save the router configuration, then reboot router and unplug wired connection.

Set your wireless settings in network manager to match the screenshots. DNS Settings IPV6 Setting

Then reboot.

edited Jul 25 '14 at 03:19

answered Jul 25 '14 at 03:08

Wild Man

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Dude, you did it! Looks like it's working! Thank you so much for your help. You're not just "Wild Man" you're the MAN!! – MoRent Jul 25 '14 at 03:33

WiFi super slow after 14.04 update on Toshiba Satalite M-55

1 Answers1