12.04 wifi slow w/drop outs

**ssloanie** · July 29th, 2012

I've tried googling and trying a few things myself (ignoring IPv6, turning off power management), but to no avail. I've gone from not even being able to load speedtest.net, to getting my advertised speed in spikes. I moved this weekend and have a new wireless router, but have never had trouble with wifi before on 12.04 and am getting good speed with my W7 partition. Wireless is either completely dropping out for minutes at a time before randomly coming back at decent speeds, then slowing down again before it drops entirely, rinse and repeat. Any ideas?

cat /etc/lsb-release; uname -a

Code:

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"
Linux ---------- 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

lspci -nnk | grep -iA2 net

Code:

02:00.0 Network controller [0280]: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)
	Subsystem: AzureWave AW-NE785 / AW-NE785H 802.11bgn Wireless Full or Half-size Mini PCIe Card [1a3b:1089]
	Kernel driver in use: ath9k
--
04:00.5 Ethernet controller [0200]: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller [197b:0250] (rev 03)
	Subsystem: ASUSTeK Computer Inc. Device [1043:1905]
	Kernel driver in use: jme

lsusb

Code:

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 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:b1e5 Chicony Electronics Co., Ltd

iwconfig

Code:

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Gotham"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:1D:D2:45:67:30   
          Bit Rate=1 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=46/70  Signal level=-64 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:1020  Invalid misc:26   Missed beacon:0

eth0      no wireless extensions.

rfkill list all

Code:

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

lsmod

Code:

Module                  Size  Used by
bnep                   18281  2 
rfcomm                 47604  0 
bluetooth             180104  10 bnep,rfcomm
parport_pc             32866  0 
ppdev                  17113  0 
snd_hda_codec_hdmi     32474  1 
snd_hda_codec_conexant    62128  1 
snd_hda_intel          33773  3 
snd_hda_codec         127706  3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
snd_hwdep              13668  1 snd_hda_codec
snd_pcm                97188  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
binfmt_misc            17540  1 
snd_seq_midi           13324  0 
snd_rawmidi            30748  1 snd_seq_midi
snd_seq_midi_event     14899  1 snd_seq_midi
snd_seq                61896  2 snd_seq_midi,snd_seq_midi_event
snd_timer              29990  2 snd_pcm,snd_seq
snd_seq_device         14540  3 snd_seq_midi,snd_rawmidi,snd_seq
arc4                   12529  2 
joydev                 17693  0 
uvcvideo               72627  0 
videodev               98259  1 uvcvideo
snd                    78855  16 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
ath9k                 132390  0 
mac80211              506816  1 ath9k
v4l2_compat_ioctl32    17128  1 videodev
i915                  468764  9 
ath9k_common           14053  1 ath9k
ath9k_hw              411112  2 ath9k,ath9k_common
psmouse                87692  0 
serio_raw              13211  0 
soundcore              15091  1 snd
snd_page_alloc         18529  2 snd_hda_intel,snd_pcm
drm_kms_helper         46978  1 i915
drm                   242038  5 i915,drm_kms_helper
ath                    24067  3 ath9k,ath9k_common,ath9k_hw
cfg80211              205544  3 ath9k,mac80211,ath
intel_ips              18089  0 
i2c_algo_bit           13423  1 i915
jmb38x_ms              17646  0 
memstick               16569  1 jmb38x_ms
mei                    41616  0 
video                  19596  1 i915
mac_hid                13253  0 
asus_laptop            24493  0 
sparse_keymap          13890  1 asus_laptop
input_polldev          13896  1 asus_laptop
lp                     17799  0 
parport                46562  3 parport_pc,ppdev,lp
jme                    41259  0 
sdhci_pci              18826  0 
sdhci                  33205  1 sdhci_pci

**wildmanne39** · July 29th, 2012

Hi, I suggest turning power management off permanently and please do:

Code:

echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf
sudo modprobe -rfv ath9k
sudo modprobe -v ath9k

Thanks

**ssloanie** · July 30th, 2012

That seems to work temporarily. When it's connected, it's almost as speedy as I'm used to, but it still goes through drops where it takes a minute to load a page. Speedtest.net shows the download speed dropping and spiking the entire time (down as low as 0.02 mbs, to as high as 5.00 mbs - avg of 0.69 mbs), and even the highest spike isn't close to the speed I'm paying for (30 mbs).

**wildmanne39** · July 30th, 2012

Hi, set your setting to match the screenshots.

Make sure your ethernet is unplugged or it will over ride the wireless connection.
Thanks

**ssloanie** · July 30th, 2012

It's taking over a minute to load pages. No ethernet cable is plugged in, I'm just connected to wifi.

**wildmanne39** · July 30th, 2012

Hi, please do:

Code:

sudo iwconfig wlan0 rate auto

Code:

gksudo gedit /etc/pm/power.d/wireless

(this will create or edit a configuration file that will override the default powermanagement behavior) and enter the following:
#!/bin/sh

Code:

/sbin/iwconfig wlan0 power off

above exit0, then save gedit, close and reboot.
Thanks

**ssloanie** · July 30th, 2012

Did that, still slow (pages load very, very slowly; pidgin won't connect to any services, get a "connection reset by peer" error; dropbox loses connection repeatedly). For some reason

Code:

#!/bin/sh
/sbin/iwconfig wlan0 power off

was already there, I just had to add 'exit0' below it.

**wildmanne39** · July 30th, 2012

Hi, please post the contents of:

Code:

gksudo gedit /etc/modprobe.d/ath9k.conf

and output of:

Code:

sudo cat /var/log/syslog | grep -e ath -e firmware -e wpa -e wlan -e etork | tail -n55

Thanks

**ssloanie** · July 30th, 2012

gksudo gedit /etc/modprobe.d/ath9k.conf

Code:

options ath9k nohwcrypt=1

sudo cat /var/log/syslog | grep -e ath -e firmware -e wpa -e wlan -e etork | tail -n55

Code:

Jul 29 21:51:50 sarahsloan NetworkManager[1063]: <info> (wlan0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jul 29 21:51:50 sarahsloan NetworkManager[1063]: <info> (wlan0): bringing up device.
Jul 29 21:51:50 sarahsloan NetworkManager[1063]: <info> (wlan0): preparing device.
Jul 29 21:51:50 sarahsloan NetworkManager[1063]: <info> (wlan0): deactivating device (reason 'managed') [2]
Jul 29 21:51:50 sarahsloan kernel: [   16.543899] ADDRCONF(NETDEV_UP): wlan0: link is not ready
Jul 29 21:51:50 sarahsloan dbus[948]: [system] Activating service name='fi.w1.wpa_supplicant1' (using servicehelper)
Jul 29 21:51:50 sarahsloan dbus[948]: [system] Successfully activated service 'fi.w1.wpa_supplicant1'
Jul 29 21:51:50 sarahsloan NetworkManager[1063]: <info> wpa_supplicant started
Jul 29 21:51:50 sarahsloan NetworkManager[1063]: <info> (wlan0): supplicant interface state: starting -> ready
Jul 29 21:51:50 sarahsloan NetworkManager[1063]: <info> (wlan0): device state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
Jul 29 21:51:50 sarahsloan NetworkManager[1063]: <info> (wlan0): supplicant interface state: ready -> inactive
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) starting connection 'Gotham'
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> Activation (wlan0/wireless): connection 'Gotham' has security, and secrets exist.  No new secrets needed.
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Jul 29 21:51:52 sarahsloan NetworkManager[1063]: <info> (wlan0): supplicant interface state: inactive -> scanning
Jul 29 21:51:53 sarahsloan wpa_supplicant[1160]: Trying to authenticate with 00:1d:d2:45:67:30 (SSID='Gotham' freq=2437 MHz)
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> (wlan0): supplicant interface state: scanning -> authenticating
Jul 29 21:51:53 sarahsloan kernel: [   19.488509] wlan0: authenticate with 00:1d:d2:45:67:30 (try 1)
Jul 29 21:51:53 sarahsloan wpa_supplicant[1160]: Trying to associate with 00:1d:d2:45:67:30 (SSID='Gotham' freq=2437 MHz)
Jul 29 21:51:53 sarahsloan kernel: [   19.490853] wlan0: authenticated
Jul 29 21:51:53 sarahsloan kernel: [   19.491164] wlan0: associate with 00:1d:d2:45:67:30 (try 1)
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> (wlan0): supplicant interface state: authenticating -> associating
Jul 29 21:51:53 sarahsloan kernel: [   19.500201] wlan0: RX AssocResp from 00:1d:d2:45:67:30 (capab=0xc11 status=0 aid=1)
Jul 29 21:51:53 sarahsloan kernel: [   19.500206] wlan0: associated
Jul 29 21:51:53 sarahsloan wpa_supplicant[1160]: Associated with 00:1d:d2:45:67:30
Jul 29 21:51:53 sarahsloan kernel: [   19.507716] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> (wlan0): supplicant interface state: associating -> associated
Jul 29 21:51:53 sarahsloan wpa_supplicant[1160]: WPA: Key negotiation completed with 00:1d:d2:45:67:30 [PTK=CCMP GTK=TKIP]
Jul 29 21:51:53 sarahsloan wpa_supplicant[1160]: CTRL-EVENT-CONNECTED - Connection to 00:1d:d2:45:67:30 completed (auth) [id=0 id_str=]
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> (wlan0): supplicant interface state: associated -> completed
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful.  Connected to wireless network 'Gotham'.
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> (wlan0): device state change: config -> ip-config (reason 'none') [50 70 0]
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> (wlan0): DHCPv4 state changed nbi -> preinit
Jul 29 21:51:53 sarahsloan dhclient: Listening on LPF/wlan0/74:f0:6d:34:1c:22
Jul 29 21:51:53 sarahsloan dhclient: Sending on   LPF/wlan0/74:f0:6d:34:1c:22
Jul 29 21:51:53 sarahsloan dhclient: DHCPREQUEST of 10.0.0.3 on wlan0 to 255.255.255.255 port 67
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> (wlan0): DHCPv4 state changed preinit -> reboot
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 5 of 5 (IPv4 Configure Commit) scheduled...
Jul 29 21:51:53 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 5 of 5 (IPv4 Commit) started...
Jul 29 21:51:54 sarahsloan NetworkManager[1063]: <info> (wlan0): writing resolv.conf to /sbin/resolvconf
Jul 29 21:51:59 sarahsloan NetworkManager[1063]: <info> (wlan0): device state change: ip-config -> activated (reason 'none') [70 100 0]
Jul 29 21:51:59 sarahsloan NetworkManager[1063]: <info> Policy set 'Gotham' (wlan0) as default for IPv4 routing and DNS.
Jul 29 21:51:59 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) successful, device activated.
Jul 29 21:51:59 sarahsloan NetworkManager[1063]: <info> Activation (wlan0) Stage 5 of 5 (IPv4 Commit) complete.

**ssloanie** · July 30th, 2012

It seems it might be just that network? I am able to connect to a wireless hotspot from my phone just fine.

I tried giving the solution in this thread a go, but it didn't work, so I put it back as is:
http://208.74.204.149/t5/Home-Networ...u/td-p/1297015

Thread: 12.04 wifi slow w/drop outs

Thread Tools

Display

12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Re: 12.04 wifi slow w/drop outs

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions