Thanks for the very detailed post. The logs point to channel ID 8 but I don't see that channel in your signal levels. I am going to guess and say it has something to do with the upstream OFDMA channel, as that is the highest channel. Since you have had multiple technicians, I would suggest putting in a FCC complaint to get the attention of their escalations department. In the complaint list all the data you gave here along with that closed ticket number. I think they probably trapped the customer who was injecting the noise, but then that customer just called to have a technician come out to remove the filter without tracking down what was causing the ingress, starting the cycle all over again. Hopefully the complaint gets in you in touch with a field tech. who you can call when the problem occurs. I wish you luck.
Thank you for the response. I do want to point out that the techs were very helpful, unfortunately it wasn't something they could resolve and only pass it up the chain which they did. The 2nd tech did give me their information so I can follow up with them to see what the next step may be and what they can/will do. I will give them some more time and see. The techs were both very understanding. It's the main CS point of contact that is at this point, utterly useless.
It is very possible that what you described happened regarding the trapping or the source. The note left on the door next days said they "addressed the main line concern" but concern appear to still exisit.
I don't know if other people are noticing it as well on my street. Maybe they are but it doesn't effect them, intermittent loss of service for 15-30 seconds may not be an issue for most for regular use, but any disrupt in connection IS an issue for me and my job (my livelihood). Without going into details, it is a pain and time consuming to get the VPN back up and running. Not to mention the disrupt in work flow.
This isn't my forte and I don't know what it entails to resolve this issue, neither is it my job really. I did take a stroll down the street tracking the Cox line. There's exposed junction boxes (could be normal), dangling unused Coax cables (could be normal). Just seems poorly managed line to me. I took some pictures, I can PM them to you if you are curious. But something is clearly not right and the line appears to be riddled with noise, internal or external.
