Hi,
same to me with BH image 2.0.1, 2.0.0 and 1.7.9 after I did a new flash to up2date image release.
With BH 1.7.9 WLAN works "sometimes". Does not matter if configured to WEP. WPA. WPA2 or WPA/WPA2 as some give suggestions to do so. I use DLINK DW-120 (54 Mbps) and driver recognizes device in all images. No errrors. The WLAN worked perfect in image 1.7.2.
But I may found something.
After reading all hints and suggestions I found a differenc in /etc/wpa_supplicant.conf compared to the wpa_supplicant documentation. In my config (created with plugin WLANSetup) the secret was commented out (?!?) and instead of this a "crypted" one was inserted.
Looked like:
#psk="mysecret"
psk=1e322....
I changed to
psk="mysecret"
#psk=1e322....
In addition I changed ap_scan to value 2 instead of 1 because I use hidden SSID only and now that my network is present.
And now WLAN works perfect. Even after reboot no problems at all.
Best
Marc