Here is the comment from
Amazon.com on how to solve the problem - but no mention is made to re-set the 202 to factory defaults via the phone:
Challeneging setup
ByPete Crozieron May 11, 2016
Verified Purchase
Considering how easy setting up the OBi200 was I was surprised how hard it was to configure the OBiWiFi, although in the end I got it working.
The setup instructions look straight forward with three easy steps - plug device into your OBiHai box, connect to the ObiWiFi's own hot spot, log in to the OBiWiFi and configure it to connect to your home wireless access point.
My install went sideways after logging on to the OBiWiFi at which point it no longer was visible as an access point with no obvious way of configuring it. OBiHai does not have phone support, but I submitted a ticket (get your OBiHai number for the device from your OBiTalk account) and they responded within an hour with questions about my set up and the SSID and password of the access point I wanted to connect to and they configured and connected the OBiWiFi for me.
Being a geek I wanted to know what they did so I could do it myself in the future, and this is what they emailed back:
There is a simple way of configuring your OBiwifi.
With the OBiwifi inserted to the USB port (with blue light blinking inside), and also the OBi200 connected via ethernet cable to the router, please login to your
obitalk.com account, and click on your OBI number to device configuration page.
Click on OBi Expert Configuration (on the bottom of the device config page)
Click on Enter OBi Expert
Click on OBiwifi configuration (wifi setting)
Uncheck both square boxes on the right side of the SSID and password, and enter your Wifi SSID and wifi password in the respective fields, and then hit "Submit" at the bottom of the page. Note that the SSID is case sensitive
Wait for a minute or so, and the status page will show whether the OBi gets an IP address from the wifi router, and if yes, then you can unplug the Ethernet cable and you should be able to make calls via wifi.