Issue with downstream

As I stated in my original post, a technician was sent here and checked the line all the way from the connection on the pole into my house and all the way to the modem.  He told me that the signal level and quality was fine.  As far as the RG6 cable, my ISP furnished and installed it, so I assume it is good quality.  The length of the cable from my modem to the box on the outside wall of my house is approximately 15 feet and from there to the pole is approximately 60 feet.  The technician also physically inspected the cable and fittings and did not find any issues.  He even disconnected all fittings, inspected them, and reconnected them.  The only thing I haven't done per your suggestions is the factory reset and I plan to try that soon.  Also the modem does not seem to be overly warm or hot.  I will report back after I have done the factory reset.  Thanks.