Hello @Guido Groeneweg , Any additional attempt will increase the lockout time so if you have made too many you might have to wait for more than an hour. Also, you can unlock by using self-service password reset (SSPR) from a trusted device or location.
Please let me know if you need more help. If the answer was helpful to you, please accept it and optionally fill the feedback form it so that other members in the community can benefit from it.