Is my router a WISP router? I have a Netgear Nighthawk X6, model R8000 AC3200 Tri-Band WiFi Router

> [...] AARP and the IRS require routers to be WISP routers. [...]

   Says who?  Is this "requirement" folklore, or is there a document
someplace?  (Where?)

   So far as I know, WISP (Wireless Internet Service Provider) refers to
how a router is connected to the ISP.  Why would AARP, or the IRS, or
anyone else care one whit about how your router is connected to your
ISP?

> [...] I have been unable to confirm whether my Netgear Nighthawk X6,
> model R8000 AC3200 Tri-Band WiFi Router is a WISP router. [...]

   You might find some relevant information in a widely neglected
resource:

      https://en.wikipedia.org/wiki/RTFM

   Visit http://netgear.com/support , put in your model number, and look
for Documentation.  Get the User Manual.  Read.  Look for "WISP".  I
wouldn't expect to find it.

> [...] If not, AARP will have to buy a WISP router that I will need to
> use in order to meet security requirements. [...]

   I don't see any connection between WISP and "security requirements".
either.  And, if you don't have a wireless ISP, then I don't see any
benefit to be obtained from a WISP-capable router.

> [...] Any insight or documentation about WISP routers would be
> appreciated.

   Try a "search" for "WISP router" on this new Inter-Web thing?  What
is it?  Gargle dot com?  Something like that.