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Low Upload Speed -- Intermittent Issue Turned Constant | Reprovisioning?
I've been on and off of the phone with xfinity over my internet issues for over half a year at this point, but it just seems to continue getting worse. Used to be an occasional upload issue, a bad day here or there, but these last few weeks its been every day.
We previously had an issue where our phones would suddenly stop uploading. At random times, the phone would stop working. We would receive calls, we could hear people talking, but they could not hear us, and we could not make outgoing calls. This coincided with times of low extreme upload speed (talking 0.2mb/s), and after about 5-6 calls with xfinity I got a tech out. He said he couldn't explain it and all he did was swap the lines from the cable box and the modem with each other. Now we no longer have the phone issue (been a few months its been gone actually) but the internet issue has stayed and probably even gotten worse.
I have The Gigabit+ x2 (2100down/300up). And I don't think I've ever seen my full upload speed. My download speed routinely goes beyond the maximum download of 2100 down, but I cant even maintain a 8kbps connection to twitch without dropping 20-40% of frames due to network, much less any truly reasonable fraction of the 300mb upload speed. I uploaded a 30gig youtube video earlier and it took around 5 hours to upload. That math's out to Less Than 10 Mbps upload speed, as 10mb/s would get that done in ~4ish hours. I do understand that getting the full speed at all times isn't the normal, and that speeds can fluctuate. But when I need maybe 30-50 of the 300up, and I cant even get that consistently, I feel like the issue is a bit more than not getting full listed speed, I'm not getting anywhere even NEAR that speed. [I am running cat 6a to my gaming PC, and cat 8 on the prioritized port to the PC I use for streaming and uploading. Both hardwired with double shielded cables (individual and pair wrapping] Even the most optimistic speed tests (comcast's in network tests) show at maximum a 50mb upload, with a fraction of that appearing in any real world scenario that involves uploading something and still very low compared to the 300 in my plan.
Likely Relevant and what made me question provisioning -- One of the many changes we made in pursuit of this internet issue was changing my XB7 out for an XB8. The XB8 is less than a year old and it has already been replaced once, with no effect on my internet speeds or issues that we have been experiencing. However, on my customer device info page, where it lists my 2100 down and 300 up, it also says that
"The Xfinity Gateway you currently have is out of date."
It only says that here on the website, the xfinity app seems to show things as being "all good". Despite all of my various efforts over the years of being a comcast customer, I've actually never thought to ask for a reprovision. So I'm hoping to get my modem reprovisioned and see if that fixes anything before I sit on the phone trying to setup more technician visits.
I can also mention that while I was trying to diagnose issues I noticed that the upstream and downstream connections of my Modem were changing rapidly. I accidentally refreshed the page and my OFDMA channel was missing, another refresh a bit later and all but one of the upload channels was gone, another refresh and they were all gone, a further and half had returned... (and so on) I just refreshed now for example, and all the downstream channels are gone, the OFDMA is there, but its symbol rate is 0, lots of weirdness here.
Last random tidbit of troubleshooting I was able to do was when I was investigating my connection to twitch. When running a traceroute on my connection to twitch's streaming servers, there's a node in my city (I'm in Pittsburgh, the node is in McKeeseport) that consistently drops 10-20% every tracert. It does seem to be a comcast node though.
That specific hop that was giving issues consistently was be-24-ar01.mckeesport.pa.pitt.comcast.net [68.85.75.57]
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