My Netgear C7100V modem recently mysteriously reset to factory settings at the same time Xfinity was doing some system maintenance. None of my devices or computers could use the internet.

Netgear technical support said that Xfinity must have reset it and that they could reset it.

I purchased this modem. It's not Xfinity equipment. But it is advertised as Xfinity approved and compatible.

Can they do that to a modem they don't own? Are there standard protocols in place that give them access?

closed as off-topic by Ron Maupin Aug 21 at 22:49

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  • Unfortunately, questions about home networking and consumer-grade devices are explicitly off-topic here. You could try to ask this question on Super User. – Ron Maupin Aug 21 at 22:49
  • Yes. Any DOCSIS device can be controlled by the DOCSIS network. If you don't like that, get a separate modem and router -- not one box that does both jobs. – Ricky Beam Aug 22 at 0:55
  • @BornInChicago in order for it to be compatible, Xfinity must be able to send your speed settings and such via TFTP, and probably be able to write customized flash images to it for their proprietary features, meaning they would be able to do pretty much whatever they want with it. Just a guess, though. – Jesse P. Aug 22 at 2:02

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