Any Comcast engineers lurking on here?
Have noticed a significant issue with endpoint connectivity into our private clouds starting around 19:30 central, continuing on to now. Have also seen some issues with devices accessing via our customers’ WAN connections through AT&T, suspecting some sort of transit fun. Tried reporting via SMB Coax and residential— not even sure why I tried. Normally, this amount of flap is not an issue for us but it’s causing some abnormal adverse effects which is an issue for us. 
We’re seeing this on customers’ networks that we know are on SMB HFC, ENS, Metro-E, pretty good spread. As well as some sprinkling of AT&T/ICN (Illinois Century Network). I am hoping it is a bad peer that can be told to stop or routed-out.
Any help or investigating would be appreciated.