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Forum Discussion
Blinking upstream light
It's actually a c7000v2. But the upstream light won't stop blinking no matter what I do, and it's been like this for 4 days. I e tried resetting it in every way possible, even a factory reset. I've al...
You've got a few errors but nothing crazy.
Any splitters, attenuators, or amplifiers in line?
Nope. Just the modem itself, with the only devices connected being my Xbox One X by ethernet, and my Samsung Galaxy S9 Plus by wifi, obviously. No matter how I reset the modem, it will go solid for maybe 10 minutes, and then flashing again, and doesn't show anything in the event logs. It still says (Honoring MDD; IP provisioning mode = IPv6) or "Unicast DSID PSN startup error" usually followed shortly by another error "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out" after I reset it. But most of the time, it's a T-3 error. Seeing as how i've factory reset it 3 times now, and nothing is changing, i'm assuming it's a defective modem.
t3/t4 errors tend to be line issues.
So you know its either:
1. The isp's line
2. The cabling
3. The modem
You can always try a different modem and see if it works. If it has the same issues, then its the cable running to the modem or the isp's lines.
- STILL having the same problems, and all Netgear and Xfinity want to do is point fingers and pass me back and forth. I've been reading ALOT of threads in here about the ridiculous amount of problems with this c7000v2, and I can't figure out how they're still being allowed to still sell it. There should have already been a class action lawsuit filed no later than 2018. I bought it from Best Buy for $189.99 back in December, and already had to pay $17 to have Netgear replace it once. Now i'm about to insist on a full refund, because I haven't had a solid week yet without numerous issues that make my internet service nonexistent. I've had my upstream light flashing with only 4 locked channels for about 5 months now, and can't get support from either side no matter what I do. It will have a "UNICAST DSID PSN startup error" every time as soon as it boots up after saying "Honoring MDD; IP Provisioning Mode = IPv6" in the event logs. Now it only shows "honorMdd(4)" in the IP Provisioning Mode. There will be legal repercussions if nothing gets done about it by the end of the month. I'm sick of dealing with it, because i'm spending on average around 3 hours per day on the phone and in online chats with support from Xfinity and Netgear. All of my Power and SNR levels are within range, all 24 downstreams are locked, so I don't know what else to do but demand a refund and get as far away from Netgear products as I possibly can
If two different units have failed, then either this is a ISP line problem and the ISP needs to send someone out to check the signal at your place, or you have two faulty units.
Have the ISP check the signal and line quality UP to the modem.
Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.Disable IPv6 option on the modems web page.
If anything find a stand alone mode and conenct a external router and see how that does, if it works better, the the problem is the C series modem.
Good Luck.
