AR9285 no scan results on Lucid

**KV Salzgitter** · January 16th, 2012

The 'lsmod | grep ath' output is in my first message, i've even tried to remove the ath9k mod and reattach it with the nohwcrypt=1 parameter, as i read it somewhere in a forum.
Didn't seem to help then.

However i'll try it again tomorrow, when i'm back in office

- Thanks

**KV Salzgitter** · January 17th, 2012

As i thought:
'lsmod | grep ath' -> as in first message
after 'sudo modprobe -r ath9k' -> empty
after 'sudo modprobe ath9k nohwcrypt=1' -> as in first message

'ifconfig -a' after 'modprobe -r' -> wlan0 is gone
after 'modprobe ath9k ...' -> wlan0 exists again

'sudo iwlist wlan0 scan' -> no scan results

dosn't anyone know about some low-level diagnosis of the card, or some log-levels so i could trace the 'iwlist scan' command?

**chili555** · January 17th, 2012

Originally Posted by KV Salzgitter

As i thought:
'lsmod | grep ath' -> as in first message
after 'sudo modprobe -r ath9k' -> empty
after 'sudo modprobe ath9k nohwcrypt=1' -> as in first message

'ifconfig -a' after 'modprobe -r' -> wlan0 is gone
after 'modprobe ath9k ...' -> wlan0 exists again

'sudo iwlist wlan0 scan' -> no scan results

dosn't anyone know about some low-level diagnosis of the card, or some log-levels so i could trace the 'iwlist scan' command?

Yes. The low-level diagnostics are in dmesg:

Code:

dmesg | grep ath9

I'd try again:

Code:

dmesg

Note the time-stamp at the last line so we can see what happens after that. Next, do:

Code:

sudo modprobe -r ath9k
sudo modprobe ath9k nohwcrypt=1
dmesg | grep ath9

Post the result and we'll troubleshoot.

**KV Salzgitter** · January 19th, 2012

I just gave the notebook back to the manucaturer for repair. Hopefully this will help. Otherwise i'll come back to this thread and do the analytics you propose.

Many thanks.

**chili555** · January 19th, 2012

Originally Posted by KV Salzgitter

I just gave the notebook back to the manucaturer for repair. Hopefully this will help. Otherwise i'll come back to this thread and do the analytics you propose.

Many thanks.

I'll be glad to help.

**KV Salzgitter** · February 22nd, 2012

Just to clarify what was happening. It seems to be an antenna issue! I came across this by chance, when i started the laptop having a wireless router (to be configured) right on my desk - and i catched a signal with the wireless card!

So the laptop goes back to the manufacturer for the fouth time - happy end is near!