Update

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Cindyy wrote:
I am having problems trying to update the Router. I can’t get my TV to come on until it’s updated. Please Help

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You have posted your message in the section of this community given over to Mobile Routers, Hotspots & Modems. (This is easily done, given Netgear's impenetrable community structure.)

You might get more help, and find earlier questions and answers about your hardware, in the appropriate section for your device. That's probably here:

General WiFi Routers (Non-Nighthawk) - NETGEAR Communities

I will ask the Netgear moderator to move your message.

Don't expect much from the  WNDR3400v3. It has its origins in a pretty basic device device first launched in 2010.