I just got the netgear wax202 and tried to install firmware with the factory image file from the blow post.
After installation, not sure if it was successful it just restart router itself, and couldn't login to admin page anymore. Both wifi lights are off too. I can use internet through ethernet cable. Any help would be appreciated. Thanks.
Wifi is disabled by default on OpenWrt. You must configure the SSID + password and enable wifi.... you'll do this via your ethernet connection, of course. And as @frollic stated, once you have a stable build installed, you'll be able to reach the web interface.