I'm confused. I've heard of there being a glitch where it will say your pw is wrong even though it's right, which I thought was the problem. But I've never heard of it happening to all of the accounts.

I logged out of my main today to check something on another account, and then it wouldn't let me log back into my main. I reset the pw, but it still says it's wrong.
So I tried logging back into my side, and it wouldn't let me log into there, either. I checked another account of mine, and it said the same thing.
I immediately thought I was chain frozen, so I made a new account. However, none of my accounts are frozen.
I logged out of my brand new account to check my accounts, and now I'm locked out of that, too.

Is this an IP ban or something? Or what's going on?
I've never had this happen before and I am super confused...