Admin Password reset?

I have four A-2Hn Groove wireless routers. I’m trying to access them through winbox, default for the password is blank, however whenever I try to connect I get “wrong username or password”. Is there a way to reset the passwords on the routers without wiping settings? If not how do you just wipe the passwords?

Thanks you for any feedback.

There is no way, sorry.

You can only do full reset.

is this just by holding down the reset button at is reboots?

Thank you for the quick reply.

Yes, but you wipe all, obiously!

Resolved