Wifi on my router dies every few days. Apparently, it's a known problem - at least many people complain about it. The simple solution is to disable WiFi, and then enable it again - keeps it going for another few days. So, I want to put this in cron and do it every night, rather than wait until it dies and do it manually. ifconfig shows me that there is wlan0 interface:

wlan0     Link encap:Ethernet  HWaddr 10:xx:xx
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3352 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4858 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:509676 (497.7 KiB)  TX bytes:4598806 (4.3 MiB)

However, running ifdown wlan0 returns an error:

# ifdown wlan0
Interface wlan0 not found

Is there a different name that I should use?

Router Model is Buffalo WZR-HP-G300NH2 and I am running the latest Firmware (Attitude Adjustment 12.09-beta2 / LuCI 0.11 Branch (0.11+svn9402)

Thanks

(Last edited by ymhee_bcex on 22 Nov 2012, 20:27)

just "wifi"

easy hah !XDD

Guys, take some times to read the documents in wiki.
http://wiki.openwrt.org/doc/uci/wireless

(Last edited by johan666 on 22 Nov 2012, 20:35)

Tried that...

# ifdown wifi
Interface wifi not found

Also tried radio0.network1 (I gleaned that from tracing what LuCi sends to the server), radio0 (which is the wifi-device value in /etc/config/wireless), and buffalo (which is my SSID).

I wish it were easy...
And of course, I read wiki before I asked...

(Last edited by ymhee_bcex on 22 Nov 2012, 20:39)

Just "wifi" command!!

Thanks. And yes, I missed the section on start/stop in wiki (actually - I saw it but I thought it applied to UCI and now obsolete).

At the risk of looking complete idiot... how do I redirect wifi's output? When I run it from command line, I get

Configuration file: /var/run/hostapd-phy0.conf
Using interface wlan0 with hwaddr 10:6f:xx:xx and ssid "myssid"

However, if I redirect

wifi >wifi.txt

I get an empty file wifi.txt and nothing on the screen, either.

I do see a line in syslog

crond[4799]: crond: USER root pid 32110 cmd wifi

but would be great to see some confirmation that the program completed successfully

(Last edited by ymhee_bcex on 25 Nov 2012, 19:49)

Reason for the empty file is that the startup msg comes from a script or program triggered by switching the IF up, not from the 'wifi' script itself. But you could use uci to check for the IF state afterwards:

uci -p /tmp/state get wireless.@wifi-iface[0].up

returns 1 if the IF is up and running.