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C7000v2 Nighthawk AC1900 Cable Modem Router - Extremely slow upload speed
I'm hoping to get some insight. I have the C7000v2 Nighthawk AC1900 Cable Modem Router. Xfinity service - 1000mbps download/35 mbps upload plan The Nighthawk app under Wifi Analytics ->...
they either need to check the amp, the line again, or the tap. you have a lot of dynamic range window violations which is when power goes out of spec. Plus t3 errors.
I'd remove that amp and see how it does.
I wasn't aware the C7000 could hit 850mbps on comcast. I though it was only spec'd up to 600mbps on comcast.
Comcast requires docsis 3.1 for gigabit lines.
when you say "home testing" do you mean the tech hooked up to the line or you hooked a laptop/pc to it and hit those speeds?
Regardless, you should be able to get faster upload speeds.
do you have a screen snip of the cable connections page and the logs? That helps us to check the line.
Not sure why, but the screenshots aren't showing so I'm including them as links for the Cable Screen. First reply has the first screenshot and this reply has the second half.
You said theirs an amplifier in line?
I'd remove that, move the modem to right where the coax enters the home, and try it.
Reason why is that if the signal isn't good coming in, the amp just increases a bad signal.
And if there's an amp issue, when the modem sends out a signal (upstream) it can block/cause issues.
Do you have the modem logs as well? The cable connection page is just taken when you open the page. The logs show underlying/longer term issues.
So I attached a screenshot of the Event Log. It seems there have been some issues and, looking them up, maybe directly related to wiring?
I'm going to connect directly to the line coming into my house to see if that corrects the issue. It's in a difficult spot so going to take a bit. I'll post what I found though.
Appreciate all the help.
they either need to check the amp, the line again, or the tap. you have a lot of dynamic range window violations which is when power goes out of spec. Plus t3 errors.
I'd remove that amp and see how it does.
