Me and one of my friends were wanting to play modded minecraft together, and I knew we were going to have to port forward 25565/tcp. In the US our ISPs like Comcast, etc give you a sticker on the bottom of all your modems/routers even if it isn't rented from them with the default username and password, in most cases it's usually something really easy like "admin" or "motorola" or something like that.

However this did not seem to be the case, this is the login page for the router that we can't log into.

If anyone could give me any pointers on what the default password would be to log into this that would be greatly appreciated. I have never dealt with a FRITZBox router before, but I assumed it should at least be somewhat straightforward. Their parents also had no clue what it could be as well. We tried the "Forgot your password" which apparently sends out an email to someone? We don't know which email account this would be either.

If anyone could point me in the right direction that would be greatly appreciated