Weak signal from Comcast

I am getting periodic pixellation on my Bolt running a cable card and Comcast cable. I had this a while ago. I spent time tightening up connections and changed a couple cables. The signal strength improved and problem solved. Until last weekend. I had to disconnect the coax cable momentarily. I reconnected and the problem returned.

It appears when the channel signal strength is 90db or above I get a good solid picture. Periodically it will drop to 87db and I will get the...

Weak signal from Comcast

Weak signal from Comcast