Wifi fails on some routers, Mint 12 LXDE, Atheros AR9285

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Wifi fails on some routers, Mint 12 LXDE, Atheros AR9285

Postby Flumme on Sat May 26, 2012 5:14 pm

Hi all!

I have run into a slight problem with my laptop at work. I am very briefly able to connect to the Wifi network, but then I'm unceremoniously booted out, and the router will not let anyone online for a couple of minutes. My computer will try to reconnect a couple of times (and succedes for a few seconds) but gets disconnected every time. When connected via my Windows OS on the same computer, everything is fine.

My Wifi at home is working like a charm, and so is another Wifi network I am logging into occassionaly.

Here's my hard ware info:

andreas@andreas-DOT-SE ~ $ inxi -Fc 0
System: Host andreas-DOT-SE Kernel 3.0.0-12-generic i686 (32 bit) Desktop LXDE (Openbox 3.5.0) Distro Linux Mint 12 LXDE
Machine: System Packard Bell (portable) product DOT SE version V3.05(DDR2)
Mobo Acer model DOT SE version V3.05(DDR2) Bios Packard Bell version V3.05(DDR2) date 08/12/2010
CPU: Single core Intel Atom CPU N450 (-HT-) cache 512 KB flags (lm nx sse sse2 sse3 ssse3)
Clock Speeds: (1) 1000.00 MHz (2) 1000.00 MHz
Graphics: Card: Intel N10 Family Integrated Graphics Controller
X.Org 1.10.4 drivers intel unloaded: fbdev,vesa Resolution 1024x600@60.0hz
GLX Renderer Mesa DRI Intel IGD x86/MMX/SSE2 GLX Version 1.4 Mesa 7.11
Audio: Card Intel N10/ICH 7 Family High Definition Audio Controller driver HDA Intel Sound: ALSA v: 1.0.24
Network: Card-1 Atheros AR9285 Wireless Network Adapter (PCI-Express) driver ath9k
IF: wlan0 state: up mac: 4c:0f:6e:00:5c:c7
Card-2 Atheros AR8152 v1.1 Fast Ethernet driver atl1c
IF: eth0 state: down speed: 4294967295 Mbps duplex: full mac: 88:ae:1d:8b:ba:cb
Drives: HDD Total Size: 250.1GB (1.4% used) 1: /dev/sda WDC_WD2500BEVT 250.1GB
Partition: ID:/ size: 86G used: 3.4G (5%) fs: ext4 ID:swap-1 size: 1.06GB used: 0.00GB (0%) fs: swap


Here's the output from mintWifi.py while connected to a "working" Wifi:

andreas@andreas-DOT-SE ~ $ sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
[sudo] password for andreas:
-------------------------
* I. scanning WIFI PCI devices...
-- Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
==> PCI ID = 168c:002b (rev 01)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"B2_private_3E"
Mode:Managed Frequency:2.472 GHz Access Point: 00:01:38:98:A4:3E
Bit Rate=11 Mb/s Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=24/70 Signal level=-86 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:117 Invalid misc:440 Missed beacon:0

-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet HWaddr 88:ae:1d:8b:ba:cb
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:44

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2808 errors:0 dropped:0 overruns:0 frame:0
TX packets:2808 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:245426 (245.4 KB) TX bytes:245426 (245.4 KB)

wlan0 Link encap:Ethernet HWaddr 4c:0f:6e:00:5c:c7
inet addr:213.112.244.10 Bcast:213.112.255.255 Mask:255.255.240.0
inet6 addr: fe80::4e0f:6eff:fe00:5cc7/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:109891 errors:0 dropped:0 overruns:0 frame:0
TX packets:15501 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:19287267 (19.2 MB) TX bytes:2755315 (2.7 MB)

-------------------------
* V. querying DHCP...
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service smbd reload

Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the reload(8) utility, e.g. reload smbd
-------------------------
* VI. querying nslookup google.com...
Server: 81.26.228.3
Address: 81.26.228.3#53

Non-authoritative answer:
Name: google.com
Address: 173.194.32.0
Name: google.com
Address: 173.194.32.7
Name: google.com
Address: 173.194.32.6
Name: google.com
Address: 173.194.32.4
Name: google.com
Address: 173.194.32.8
Name: google.com
Address: 173.194.32.9
Name: google.com
Address: 173.194.32.14
Name: google.com
Address: 173.194.32.5
Name: google.com
Address: 173.194.32.3
Name: google.com
Address: 173.194.32.1
Name: google.com
Address: 173.194.32.2


Here's is what I get from my work Wifi in the few seconds I am online before getting kicked out:

andreas@andreas-DOT-SE ~ $ sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
-- Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
==> PCI ID = 168c:002b (rev 01)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"Olga"
Mode:Managed Frequency:2.437 GHz Access Point: E0:91:F5:0B:A3:97
Bit Rate=65 Mb/s Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=60/70 Signal level=-50 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:25 Missed beacon:0

-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet HWaddr 88:ae:1d:8b:ba:cb
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:44

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2808 errors:0 dropped:0 overruns:0 frame:0
TX packets:2808 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:245426 (245.4 KB) TX bytes:245426 (245.4 KB)

wlan0 Link encap:Ethernet HWaddr 4c:0f:6e:00:5c:c7
inet addr:192.168.1.9 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::4e0f:6eff:fe00:5cc7/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:111288 errors:0 dropped:0 overruns:0 frame:0
TX packets:15572 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:19374761 (19.3 MB) TX bytes:2767275 (2.7 MB)

-------------------------
* V. querying DHCP...
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service smbd reload

Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the reload(8) utility, e.g. reload smbd
-------------------------
* VI. querying nslookup google.com...
Server: 192.168.1.1
Address: 192.168.1.1#53

Non-authoritative answer:
Name: google.com
Address: 173.194.32.14
Name: google.com
Address: 173.194.32.1
Name: google.com
Address: 173.194.32.3
Name: google.com
Address: 173.194.32.0
Name: google.com
Address: 173.194.32.9
Name: google.com
Address: 173.194.32.5
Name: google.com
Address: 173.194.32.8
Name: google.com
Address: 173.194.32.4
Name: google.com
Address: 173.194.32.2
Name: google.com
Address: 173.194.32.7
Name: google.com
Address: 173.194.32.6


And, finally, when I'm unable to connect to my work Wifi:

andreas@andreas-DOT-SE ~ $ sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
-- Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
==> PCI ID = 168c:002b (rev 01)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on

-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet HWaddr 88:ae:1d:8b:ba:cb
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:44

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2808 errors:0 dropped:0 overruns:0 frame:0
TX packets:2808 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:245426 (245.4 KB) TX bytes:245426 (245.4 KB)

wlan0 Link encap:Ethernet HWaddr 4c:0f:6e:00:5c:c7
inet6 addr: fe80::4e0f:6eff:fe00:5cc7/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:111325 errors:0 dropped:0 overruns:0 frame:0
TX packets:15626 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:19379432 (19.3 MB) TX bytes:2775719 (2.7 MB)

-------------------------
* V. querying DHCP...
-------------------------
* VI. querying nslookup google.com...
;; connection timed out; no servers could be reached

andreas@andreas-DOT-SE ~ $


If you need anything else, please let me know!
Last edited by Flumme on Sat May 26, 2012 5:41 pm, edited 1 time in total.
Flumme
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Re: Wifi fails on some routers, Atheros AR9285

Postby Flumme on Sat May 26, 2012 5:35 pm

Oh, and I've tried this command too, but that killed my Wifi completely...

sudo sh -c 'echo "options ath9k nohwcrypt" > /etc/modprobe.d/wlan.conf'


In order to get things rolling again I ended up reinstalling Mint all over again.
Flumme
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Posts: 3
Joined: Mon Apr 23, 2012 3:52 pm


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