This is for regular ATT DSL (not U-verse) I have confirmed that the model I bought is the correct one for the service I have. I have tried three different wires, with and without the filter (I do not have a home phone). I have tried two different ac1900s and get the same error from both. the Netgear ac1600 as well as my old Westhall ATT router both pick up the internet fine so signal is coming into the home. I have spent hours on the phone with ATT, Netgear, and Geeksquad and no one can figure out what is wrong.