> [...] recover the SSID and interface my Firestick to my wi-fi router.
A CM400 is not your "my wi-fi router".
> [...] my AC-1200 (netgear) Wi-Fi router [...]
"AC-1200" (or "AC1200") is a speed, not a model number. Ever
helpful, Netgear product packaging emphasizes speeds like "ACxxxx", but
that's not the model identifier. Look at the product label.
An SSID is the name of a wireless network, which the router typically
broadcasts, so what, exactly, are you trying to "recover"?
Visit http://netgear.com/support , put in your (actual) model number,
and look for Documentation. Get the User Manual. Read. Look for
"Types of Logins".
> [...] and the DEFAULT username and password do not work!
Which "the DEFAULT username and password"? If you're trying to use a
web browser to access the router's web site, and the default credentials
("admin", "password") don't work, then the usual solution is a settings
reset. Look for "Factory Settings" in the User Manual. Some devices
(and firmware versions) claim to offer a lost-password recovery scheme,
which might work, but which seems to generate many complaints in these
forums. (None of which has anything to do with an SSID.)
Still a mystery would be why you need to do any of this to "interface
my Firestick to my wi-fi router."
