wifibox cannot connect using WiFi: 'wlan0' not found

[casperlamboo]

Suddenly the WiFi connection does not work anymore. Both creating an AccessPoint and joining as a client fail. Connection with ethernet cable works fine.

details:

• firmware version: 10.5
• When creating an accesspoint the wifibox fails to retrieve the MAC address so it tries to create a network with the name Doodle3D-000000
• looking in the /tmp/wifibox.log shows wireless device 'wlan0' not found, trying fallback 'radio0' multiple times
• the folder /sys/class/net contains: br-lan eth0 lo. This shows that wlan0 is missing
• the contents of /etc/config looks normal

[casperlamboo]

the folder /sys/devices/platform/ar933x_wmac exists but the subfolder net is missing.

[casperlamboo]

reflashing the wifibox (using sysupgrade -v -n /tmp/doodle3d-wifibox-0.10.5-tl-mr3020-sysupgrade.bin) solved the issue. the cause of the problem is still unknown.

[arneboon]

was it renamed?

check

sudo gedit /etc/udev/rules.d/70-persistent-net.rules

check the NAME tag and rename back to wlan0 if it is changed?

[arneboon]

cat /etc/udev/rules.d/70-persistent-net.rules

[arneboon]

at least that works on debian

[casperlamboo]

/etc/udev/ does not exist on OpenWrt.

[casperlamboo]

The syslog in wifibox.tgz shows the following on the broken device:

Thu Jan  1 00:00:17 1970 daemon.info sysinit: 'radio0' is disabled
Thu Jan  1 00:00:17 1970 daemon.info sysinit: 'radio0' is disabled
Thu Jan  1 00:00:17 1970 daemon.info sysinit: 'radio0' is disabled

[olijf]

On recent firmwares it looks like the network name Doodle3D-000000 comes up more often if you issue a reboot from the command line. Maybe this has something in common with this issue?