Constant T3/4 errors
Constant outages for the last several months, T3 and T4 errors in the logs each time. Never had issues except when maintenance was performed, then a round of cox trucks came in the area and we've ha...
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dBmV ranges on downstream from -0.7 to 4.5 currently, mostly in the positive 3s and 4s, SNR is between 40.1 and 42.5. Other times I check dBmV is between 4-10. Channel 33 though, OFDM PLC at channel ID 159 has 1,333,331,855 corrected errors, and this is with a 17 hour uptime. Refreshing the page right after, 1,340,910,085 errors. Last tech that came by said downstream should be roughly -10 to +12 and no more or less
Upstream channels are 46-46.8 dBmV. That seems excessively high, but I am unsure what they're supposed to be.
The RG6U runs from the cox box on the house to the bedroom directly, then terminates with an F type compression coupling in a faceplate, then direct to modem. This setup has been flawless for years.
We had a TPLink router that suddenly kept rebooting, and when we thought the router was dying, replaced it with a Motorola, then that didn't resolve (it cleared up for a couple weeks then right back at it) and we filed warranty for the Motorola modem. Then it was fine the whole time the modem was shipped.
Sometimes it's good for weeks on end without issue, then all of a sudden it's constant back to back. I got tired of dealing with the tech support and have dealt with it hoping it would clear again.
That setup means you have a barrel connector in the wall plate, it's a POSSIBILITY, but swap it out, and see if that helps.
Yeah I can do that, I was thinking about that earlier to exhaust everything on my end. That's pretty much the only thing I could think to do on my end though.
Do you recall or guesstimate what your upstream power levels were before the Cox trucks invaded your neighborhood? Too much upstream can cause disconnects and perhaps reboots but I've read 42 to 50 is an ideal spec. Depends on the plan and equipment I guess.
I honestly don't recall. Considering the "corrected" count keeps climbing constantly, I'd assume there's an issue down the line somewhere, and guessing SNR in the 40s is still reasonable, well, I'll just say I'll even look at replacing all of my coax before having another tech come out. It's such a bother. Wouldn't hurt to have some extra rolls of RG6U like all the Cat 5/6 I have already.
To give you an idea, here are my levels
Everything looks comparable to what I would expect, I have lower frequency ranges (200-300MHz and correlated lower dBmVs to match, higher frequencies - 729 and up - have higher dBmV readings as well). My SNRs are also comparable, not above 42.6, most in 40s and 41s.
