ok . hopefully , some of you out there in North Carolina face with pay $ 3.95 a month rental on a modem twc once provide free of charge will find this helpful . I purchase a ubee ddm3513 to replace the Ubee ddm3611 supply I by twc . as for the TWC modem , I have it set up in bridge mode to bypass the wireless network service since I already have a wireless network with a LinkSys router . when I receive the notice from TWC that effective immediately they be charge for the supply modem , I opt to buy my own and avoid the lease fee . the list of support modem provide on TWC 's website do not include the modem they supply I , so I figure the list be not complete . I decide to purchase a Ubee modem -lrb- the 3513 -rrb- since it have the same spec as the 3611 TWC supply , the only difference be that the 3513 do not include wireless capability , which I be not use anyway . long story short , after wait for more than 30 minute in a queue , I be lucky to get a very knowledgeable tech who ask I the one simple question : what be the MAC address for the new modem -lrb- which appear on a white sticker on the bottom of the modem , for those of you not familiar -rrb- . he do not ask what brand or give I the third degree about it be on the list of approve list . he provision it , it work , end of story . so yes , if you be a twc customer in North Carolina and want to replace you twc-supplied modem with one that work and that you own , this modem will do the job .