If you are following the example to connect to a hidden network : wifisetup add -ssid 'myHiddenNetwork' -bssid '12:34:46:78:9a:bc' -encr psk2 -password 'networkKey123'
please note that the bssid hex address should be in lower case ... if you cut and paste it from where it is uppercase it does not work ....
( I also edited /etc/config/wireless and inserted the entries from the wifi-config section into the wifi-iface 'sta' section )
After this i have wireless network access to my normal network for first time 
this is with the new 0.2.0 b176 firmware.