I'm on Cox in Orange County, CA with 2x Roamios and both my TAs stopped working at the same. Reset the TiVo, reset the TA, call Cox (they sent hits to everything) and nothing. The TA just blinks. TiVo doesn't even see there is a TA attached. In fact Cox says they can't see it. Any suggestions? Is there anything that TiVo has done that would not detect the TA and send it into a loop? Have a tech coming this weekend with 2x new cable cards and 2x new TAs. Was hoping to do/try something in the mean time. Anyone in Coxland get a TA recently? Are they still the MTR700s?