Repeated Xfinity Problems - NEED OUTSIDE COMMUNITY JUNCTION BOX CHECKED!

Been an Xfinity customer for over 20 years.  However, as technology has improved my service and quality of products seems to decline.

Internet - my Internet service drops in-and-out M-F between 11am-1pm and 4pm-6pm.  So please don't tell me that this is an issue inside my house when for the remainder of the day the Internet works great!

Cable - HD channels are pixelated.  Other channels randomly pixelate. But all streaming apps or PPV are perfectly fine. 

I've had repeated "technicians" visit my house and their sole solution is to run a new wire.  So, yeah, that doesn't ever fix the problem.  The problem is clearly beyond my house at either the junction box or beyond but I have had zero luck in contacting anyone at Xfinity who wants to do anything beyond sending a "technician" to my house when I am home so they can run a new line.  As the problems I experience are random the technician sits for 5-10 minutes and says, "Everything looks good."...and then the problems continue.

Not sure why Xfinity doesn't want to examine their outside equipment and replace or repair as needed.  There's not even a reliable way for me to report an outage.  When both myself and neighbors have problems with Xfinity service we report the app and get a "No Outages in Your Area" response.  The box isn't even secure on the junction box which often has the cables exposed to the elements.

HELP!