That is a pretty decent modem/router from what I've heard (you'll have to wait until next week to get a proper response since I'll be getting it next week), but the best advice is to get the latest firmware which supports G.INP downloaded and fire up the router without connecting it to the phone line to check and if the update is needed, install it and do the necessary after update maintenance before putting in all the necessary details and shut it down so that when it's wired it should connect without any issues.