I have checked and have not found a similar problem with a solution.
As far as I can tell the HD I inputs on My Vizio Midel D32h-F0 TV has HDCP rating of 1.4 and is 1080 p X 60. During setup I was given the work around to manually set up for 1080 p. I did so and got an OK Menus and Screen Savers Display fine. Any video I try to play generates the DHCP Error 020.
I followed the suggestions about unplugging etc. No joy. What now?
Brian
The first thing to try in this case is a different HDMI cable. Also ensure there's no dust or crud in either the cable connections or the device ports. It doesn't take much.
Switch your HDMI port from 1 to 2 or three, you're probably trying to load on a 4K or high definition port this is what helped me.