Trouble activating router on Xfinity

[RMower]

Model C3700 N600 WiFi Cable Modem Router

I purchased this router in 2015, registered it with Netgear and installed it on my home network with Xfinity.

I have since replaced the router and sold it to someone else.  She contacted me because Xfinity told her they could not activate the router on her home network because I had registered it with Netgear.  What the heck do I need to do so she can activate the router on her network.  Getting through to Netgear is impossible.

Thank you, in advance, for any assistance.

[plemans]

That shouldn't matter. I've had several modems I've sold without issues. 

it might be the xfinity tech giving her grief.

the only time I had an issue was when a modem was still the primary modem on a clients account when I bought it. They had to deregister it at xfinity and wouldn't until the customer did it. 

[FURRYe38]

Try getting ahold Netgear support or a forum Moderator as well.

https://www.netgear.com/support/#

@vkdelta 

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@RMower wrote:

Model C3700 N600 WiFi Cable Modem Router

I purchased this router in 2015, registered it with Netgear and installed it on my home network with Xfinity.

I have since replaced the router and sold it to someone else.  She contacted me because Xfinity told her they could not activate the router on her home network because I had registered it with Netgear.  What the heck do I need to do so she can activate the router on her network.  Getting through to Netgear is impossible.

Thank you, in advance, for any assistance.

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