Problems with iwn

J

jem

Hi forum.

I have a laptop equipped with an Intel 4965 Wi-Fi interface, driven by the iwn(4) driver. The interface is configured to connect to my home wireless LAN at boot time using the instructions in the handbook, as follows:
Code: 
# /etc/rc.conf.d/network
wlans_iwn0="wlan0"
ifconfig_wlan0="country gb WPA SYNCDHCP"
Code: 
# /etc/wpa_supplicant.conf
network={
        ssid="[redacted]"
        psk="[redacted]"
}

If the laptop is in range of my wireless LAN and has a good signal at boot time, it will connect reliably and remain stable. However, if it's in a room of the house where the signal is marginal, or at a different location altogether where my wireless LAN isn't available, the interface gets itself into a strange state where it will no longer reliably connect to any wireless LAN until the laptop is rebooted.

At home, even when I move the laptop to where there is a strong signal, it gets into a continuous cycle of associating for about 10 seconds, then disassociating for about 20 seconds. While this is happening, ifconfig wlan0 indicates that the interface is cycling through all the available 2.4 GHz and 5 GHz channels.

I've searched the web for this issue but haven't found anything relevant, so I'm a bit stumped. I don't have any problems with this interface under Windows or Linux, so I doubt there's a hardware fault.

Can anyone advise what diagnostic steps I should take or information I should gather to help diagnose this issue?

Thanks.
J
 
Hi!

Would you please try FreeBSD-HEAD? Maybe I've fixed that behaviour. :)
 
Last edited by a moderator:
I haven't been able to observe a consistent pattern of behaviour (either good or bad) with this, so it's a bit difficult to accurately describe what's happening. I'll spend more time playing with it and see if I can write it up. Then I'll try -HEAD to see if the problem goes away.

I'll post on the -wireless list when I've got something more concrete to describe.
 
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