Very simple. On the back of your router there is a small round reset button. Use a pen and hold that button down for several seconds, unplug everything from the router, plug everything back in wait...

Check Your Router Settings and Your Speeds (and Your Plan)

Yes it correct that its under technical test but when asks for reply its only that coz all are concerned , You just need to increase your support part. Other all is nice.

Perfect idea, What you can do is Troubleshoot the issue stepwise and get the unwanted stuff removed and your error can be solved, and you can have an update for WPA-4220.

Its really great if you can update your database queries to fix the query based errors, Actually I am also facing issues for the same. Rather I would go for updating it as suggested by bimbam.