Can't portforward on my R8000 Nighthawk

[jackrab13]

I am attempting to port forward on my R8000 Nighthawk but when I go to check the port, they say they are closed. I have port forwarded many times before on other routers but I am having an issue with this. Can anyone help me out? Thanks. 

[antinode]

> Can't portforward [...]

   "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.

> I am attempting [...]

   Not an improvement over "Can't".

> [...] I am having an issue with this. [...]

   "issue"?  With _what_, exactly?

   What, exactly, are you trying to do?

> [...] R8000 Nighthawk

> Model: R8000P|Nighthawk X6S AC4000 Tri Band WiFi Router

   Which is it?  Look for "Model" on the product label.  Firmware
version?  Connected to what?

   For the usual problems with port forwarding, see:

      https://community.netgear.com/t5/x/x/m-p/1859106

[microchip8]

Who is "they"? Are you using some port checking websites? If so, they need something listening on the port to show it's open