Intermittent disconnects and packet loss
I have been having packet loss and disruption of service that leads to frequent disconnects in everything from video calls to streaming to gaming. This issue has been occurring for roughly one month, but was not an issue before. The disconnects happen on all devices connected to the internet. I have gone through the troubleshooting steps, replaced router, modem and all cables, and I have already gone through the chat service and had a comcast maintenance person come out twice (they were not happy to come out the second time and extremely dismissive of my issue). The signal coming to the modem is good, which I knew already and is the only thing they check.
I have been tracking latency and packet loss with pingplotter and it is clear that there are spikes of packet loss occurring even when nobody is at home, or everyone is asleep. I have a hard time believing that this is a bandwidth or a data issue when this program is the only thing running. Looking at the nodes, it appears the packet loss is occurring at a particular IP (220.127.116.11) that is well upstream of the modem/router on site. I need to talk with a network specialist who will take my issue seriously.