EDIT 5: After dealing with this since May 2021 I can't see what more I can do. I've had 5 visits people form network etc. and many things replaced and NONE of it has fixed this issue.
I've decided for real this time I'm done chasing it. Myself and the local Comcast team have worked till we're blue in the face and can't come up with a solution. We've both hit brick walls. On the last visit me and the supervisor went over EVERYTHING and checked it all off.
Until further notice I will ask for service credits saying my issue is unfixable. I really don't blame anybody at this point.
Edit 4: Not resolved. It was good for a few days and started screwing up again. I give up. There is NOTHING wrong. Seriously, They've checked everything and I believe they have done everything they possible could at this point.
WHAT the heck is still wrong?
EDIT 3: I think my 6 month battle with Comcast is over. They found two houses with ingress noise and dealt with them. They said the issue was noise was minimal but shouldn't have caused my issue. Regardless, Once dealt with my issue was resolved.
From https://www.dslreports.com/forum/r33209970-Speed-intermittent-upload-speed-issues-Comcast-unable-to-fix
EDIT 2: Form a contact I have with National Engineering I was told that there is a issue flagged for my node for FEC issues and a upstream channel has degraded to 32-QAM.
Also, The Xfinity app has flagged several times saying service impaired. It makes sense now.
Sounds like it's a bad node or something among the fiber path.
Edit: my issues are not resolved and today I noticed that an upstream channel dips to 32-QAM.
The saga continues.
It seems like finally after a month I got an issue to be recognized after giving up.
Today, they replaced my drop With two technicians and were able to get network out today. Network decided to replace the line extender feeding my street with a Bridger. This resulted in two more network people showing up.
This morning most of my street was clogged with xfinity trucks :)
My 50-52 dBmV upstream has dropped now to 45-46.5 dBmV.
I’ll post some pictures later of the new setup. EDIT: See the second page for pictures.
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