Admin login site is not secure

> I logged in to my router as admin so I could update the password, but
> the connection is not secure.

   It's common to get complaints from a modern web browser when you use
the router's management web site, because the browser is worried about
your sending some user credentials over an unencrypted/insecure link
("http://" instead of "https://").  The easy thing to do is ignore the
warning, and proceed.  Presumably, you're talking to your own gizmo on
your own LAN.  If someone can overlisten to that local traffic, then
you're already in big trouble.

> its normal because you're on your local network. you're not "online".

   It's not "normal because you're on your local network."  It's
(probably) _harmless_ because you're on your local network.  It's
"normal" because a typical Netgear consumer-grade router uses HTTP, not
HTTPS, for access to its management web site.