Repeated Service Drops, T3 Timeouts, etc. - Cant get resolved/terrible customer service

I recently moved homes and Xfinity service in the new home is so poor with continued drops/instability I can't work from home.  I might have to try and find another solution.  When I am able to actually get to talk with someone (which is not easy to explain the issue in detail) all they do is send someone out to put a new line from the tap to the house which is waste of both my and their time.  See below for snapshot of what I am seeing based on the event logs in system, etc.

I’m experiencing repeated service drops caused by upstream ranging failures. My Arris S34 logs show sustained clusters of T3 timeouts, unicast maintenance failures, downstream SYNC loss, OFDM profile changes, and upstream diplexer re-initialization — without a full modem reboot. Downstream and upstream signal levels are in spec during stable periods, which indicates intermittent return-path noise or node-level impairment rather than in-home wiring or equipment.   Does anyone have thoughts on how I can escalate this to network/line maintenance or someone with deeper knowledge to investigate upstream noise, node health, and CMTS logs for my service area versus just checking my wiring in house and then installing a new line outside which is not working after 2 attempts. 

Thanks in advance.