netgear r7000

[giguboyu]

netgear r7000 not recognizing router

has worked up until yesterday -  my optimum router has been tested and is fine.  Please help, thanks!

[plemans]

What optimum router is it connected to?

Because if its truly a router it causes a double nat. 

You could put the netgear in AP mode and connect it. 

[michaelkenward]

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@giguboyu wrote:

-  my optimum router has been tested and is fine. 

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Model number?

As @plemans hints that could be where the trouble starts.