High ping, latency issues, over 50% packet loss

For approximately the past 2 years I've had a reoccurring issue regarding high ping, latency, and packet loss every 4-5 months.  Xfinity constantly wants me to restart my modem, unfortunately that only temporarily fixes my issue for about an hour.  The errors on my router that I'm receiving are a combination of the following -

No Ranging Response received - T3 time-out

Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out

Started Unicast Maintenance Ranging - No Response received - T3 time-out

SYNC Timing Synchronization failure - Failed to acquire FEC framing

MDD message timeout

I'm a former NOC Technician for a major east coast data center, and all of these are telling me that there is an issue with the coax from your box on the side of the townhome, into our owned unit.  There are multiple female to female adapters installed by your technicians.  As well as the box has been open for over 2 years, with a rats nest of splitters, filters, and couplings dangling out of the box.  The last technician to come out ran tests and it showed that there was an issue in the line, and replaced a filter, as well as removed the birds nest that was literally inside the box.  When I asked the tech about fixing the box and the wiring in the box, he told me that this was an HOA issue.  No one in my HOA works for xfinity.  Currently, the box is still wide open with wires hanging out, and now a 2nd birds nest, as well as the temporarily fixed issue, returning,  When I asked the previous tech to replace the line from the box to our unit to eliminate the couplings, he replied that it wasn't within his scope.  This is unconditionally unacceptable.  Attached are photos, as well as logs from our router -