Netgear Modem and Nighthawk no internet connection

[riaamp]

Slow internet on wifi yesterday.. freezes etc.  and now nothing. The modem works - I'm hard wired to write this. The Nighthawk has amber light on the interent connection. I've done everything I can find. Reboots, resets, changing cables... can't login to the router because it's not on the internet.. Nighthawk app on the iphone finds the router - tells me it's not connected to the internet! I know that. 

I think it's dead. I'm very annoyed... Didn't buy it that long ago. 

[plemans]

1. what modem do you have? 

2. what firmware is on the router? 

3. did something happen to cause it? (storm, power surge, etc)

4. what are the rest of the led's on the router doing? (color, blinking, solid, etc)

[riaamp]

1. I have a netgear Voice Cable modem CM1150V.

2. Don't know - can't get connected to the router

3. Possibly - but not apparently. We've had a number of power outages due to storms. As I said initially, we had slow internet, and freezes (I was on Zoom) and then it stopped working entirely. 

4. LEDs All white: Power, 2.4 5.O  #2 port (i have a plug in it) and the wifi on and WPS button, only the internet LED is blinking amber. The others are off. 

Thanks for helping. I do think we have a sick router.

[antinode]

> Model: R6700|Nighthawk AC1750 Smart WiFi Router

   R6700[v1], R6700v2, or R6700v3?  Look for "Model" on the product
label.

> [...] The Nighthawk has amber light on the interent connection. [...]

   Visit http://netgear.com/support , put in your model number, and look
for Documentation.  Get the User Manual (at least).  Read.  Beyond the
basic set-up instructions, look for the LED descriptions and
"Troubleshoot".  Further reading might not hurt, either.

> [...] can't login to the router [...]

   "can't" is not a useful problem description.  It does not say what
you did. It does not say what happened when you did it.  As usual,
showing actual actions (commands) with their actual results (error
messages, LED indicators, ...) can be more helpful than vague
descriptions or interpretations.

> [...] because it's not on the internet.. [...]

   Your router has its own little management web site, built in.  You
don't need an Internet connection to talk to your own router.  Think
about it.  If an Internet connection were needed to allow you to
configure a router to get an Internet connection, then very few people
would have an Internet connection.

[riaamp]

I have read, and read and read. I have both manuals downloaded. It does seem that the issue is that the modem is not connecting to the router. We've tried a brand new router and had the same issue. The amber light continues to blink whether on the old or the new router.