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Forum Discussion
Dboy501
Apr 29, 2020Guide
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...
plemans
Apr 30, 2020Guru - Experienced User
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.
Dboy501
May 24, 2020Guide
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
- FURRYe38May 26, 2020Guru - Experienced User
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.
- Dboy501May 27, 2020GuideThere's no option to disable IPv6, only the firewall. There's no option set priority either. This sure is an expensive piece of equipment to have so few options in the administrative settings. I've been in talks with Xfinity's corporate office for about 2 weeks now, and they've escalated this to their tier 3 techs, because they've already been out here and replaced every single inch of their equipment on my property twice. The techs say they rarely come across a signal as clean as mine. It literally couldn't be more directly connected from the pole to the box, and from the box directly to my modem. From there it's just a cat 6 ethernet cable to my Xbox. I'm personally out of options, and since Netgear already replaced the unit, Best Buy won't touch it. So if this doesn't get resolved in the next week, i'm going to need Netgear to issue a refund. I've dealt with this for too long, and spent way too much money to recieve the lack of support i'm getting from both sides. I'm ready to take my refund and completely cut ties with both companies at this point.
- FURRYe38May 27, 2020Guru - Experienced User
You'll need to contact NG. Good Luck.