Wireless login to router

> [...] "You may not be connected to your routers WiFi" [...]

   That's usually a DNS (and/or browser+DNS) problem:

      https://community.netgear.com/t5/x/x/m-p/1976674

> [...] I'm certain I am entering the correct login info (case and
> content) . [...]

   With my weak psychic powers, I couldn't say.  Perhaps the router
disagrees.  A settings reset should restore the default credentials,
which should remove any doubt about their correctness.  (See the product
label.)

   Visit http://netgear.com/support , put in your model number, and look
for Documentation.  Get the User Manual.  Look for "Types of Logins" and
"Factory Settings".