Hi,
I had similar weirdness a couple of weeks ago on a Sunday afternoon, where I basically lost all cable channels above 70 something (except for a handful of the local HD channels in the 309-313 range). I called Comcast, who resent the reactivation signals to my cable cards and my Comcast 4250 HD box. After about 30 minutes, everything cleared up and all of my channels returned (I remained on with the first level tech the entire time).
I did eventually get kicked up to the CableCard techs, but by the time I got there off of hold, everything was working again.
BTW, ever since I have not received guide data to my Comcast 4250 HD box, but since I only watch that TV when I'm working out (and I have been severely slacking lately) I have not bothered to wait on hold for the 30-45 minutes required to talk to tech support.
My recommendation is to try it one more time, but get like 6 or 8 cable cards from the storefront, find two that you confirm work and return the others - saves you the cycle time.
Good luck.
I had similar weirdness a couple of weeks ago on a Sunday afternoon, where I basically lost all cable channels above 70 something (except for a handful of the local HD channels in the 309-313 range). I called Comcast, who resent the reactivation signals to my cable cards and my Comcast 4250 HD box. After about 30 minutes, everything cleared up and all of my channels returned (I remained on with the first level tech the entire time).
I did eventually get kicked up to the CableCard techs, but by the time I got there off of hold, everything was working again.
BTW, ever since I have not received guide data to my Comcast 4250 HD box, but since I only watch that TV when I'm working out (and I have been severely slacking lately) I have not bothered to wait on hold for the 30-45 minutes required to talk to tech support.
My recommendation is to try it one more time, but get like 6 or 8 cable cards from the storefront, find two that you confirm work and return the others - saves you the cycle time.
Good luck.