Just switched my Roamio plus to my main box on account. Couldn't pair the Cablecard until the girl chNgedcmy " billing heirarchy" to reflect that the Roamio was my main box. Now, the Xfinity box was free. Do I return it to save money? (I think it was costing me 3 dollars but that was,as my main box). Bottom line...who fixes v301?? TiVo?