been happening here east of seattle for weeks now. briefs 1-3 mins down/up. pretty much all day long everyday. it's super fun doing conf calls presenting to customers and have it totally halted because comcast eats it.
at least their site actually shows a known outage so i don't have to prove it's down to some call center person. happening to all my neighbors as well. been trying to overlook it knowing we're all working from home and i assume the load on the comcast network is higher now. but it's weeks later and still happening. pretty sure no one from their tech team is actually trying to resolve it.