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Forum Discussion
Netgear C7000v2 suddenly not working with Xfinity Comcast
My parents have been having a hard time with their wifi range, so I made plans to replace their Netgear c3000 cable modem w/wifi. I was using a Netgear C7000v2 at home with no problems (also comcast xfinity cable).
Before I could do the upgrade he called and said the internet was completely offline.
So I took my C7000v2 to his house, plugged it in, called Comcast, had provisioning take the modem OFF my account and put it onto his. Then we saw the GLOBE light never came on and uplink never connected. They said 'looks like you have a signal problem.' sent out a tech, the tech tested it and said 'it's your modem, my modem works fine.'
How, in a 24 hour period could 2 netgear modems fail on xfinity? When the c7000v2 was working perfectly from my house which is about 20 mins away?
I am at a loss, I had 3 different phone calls, one on sight and each told me 'we see the modem there, but there's no link'.
The only thing I can think is firmware? PErhaps my dad has a different internet package than I do? I have the 60mb and he has 75mb package.
The techs told me to go buy a new modem, so I'm going to buy an Arris.
but this doesn't seem kosher to me.
anyone able to help?
3 Replies
Can't offer much support on the C7000 but I recommend splitting the modem from router. Use a pure modem-only to get internet and hook up a real router to the modem, not a router/modem combo.
Comcast does a great job of blaming everything on the modem (if its not theirs) or a house. They'll do whatever they can to not admit its on their end.
Hook up the modem and take a screen snip of your modems connections page. It should lock at least 1 channel for activation. That'll at least show us a baseline power level.
I've had to argue with a tech before because he kept saying it was a modem issue because their docsis 3.1 device connected and worked. docsis 3.1 is a little more tolerant of power flucutation for activation. If the level is to high or low, it'll cause issues.
I ended up buying an Arris modem/router/wifi device which is docsis3.1 and it works wonderfully. Yes I believe it was a power fluctuation issue. Thanks for letting me know 3.1 is more tolerant of these, but I should still clean up the power. Thank you.
-Chad
