Well the proper thing to do would be to run ethernet to the desired router.
Most FiOS installs are coax, and so running ethernet to some parts of the house might be difficult. When you do this bridging it turns the actiontec into a bridge, and you can do coax to ethernet conversion with it.
It's more popularly used with a regularly functioning verizon router, and a 2nd verizon router (bridged) in a spare room (like this user wants to do) so that you can extend hardwired functionality to a distant bedroom.
Most cases you can simply daisy chain routers, or go ethernet and get rid of the actiontec altogether, but that's where the question comes in "do you have FiOS Tv" If you do, then you won't want to bridge the router, daisy chain is a better option.
Most people ask to bridge in MY OPINION and apparently actiontec's because with Cable Modems/routers (Brouters) or DSL Modem/Routers, you would need to bridge just to keep the modem functionality. With FiOS there is no Modem, so usually it's a misunderstanding of the architecture.
