I was having spotty internet service with my 5 year old Cisco router, so I bought a new Netgear AC-1900 Dual band router. After finally getting it installed, I decided that it appearing on the network list as NETGEAR 52 with the default password provided wasn't such a good idea so I went in to change it.

I was worried about hosing this operation and locking me out of the internet, so I changed the 2.4 Ghz band with a new name and a new password which I wrote down and checked several times before I hit apply. Sure enough, when I tried to connect to the newly named network, it told me I was entering the wrong key, and wouldn't let me connect.

Thankfully, I could still connect to the 5Ghz band, but I still don't feel very secure exposing myself as a Netgear router with a default password. Should I be concerned and what could have prevented me from connecting after I changed the other band? I KNOW I had the right password.

Thanks for any help you can provide.