Playback issues

Several years ago I left COX because Contour was such a hot mess.  Tons of playback issues.  After a week of being back on COX I am having the same problem.  Seems to happen to NBC programs the worst.  Sometimes we basically can't watch what we've recorded.  So we'll reset the box, it'll work for a few days, and back to the same old same old.  Anybody else have, and solve, this problem?