When you try to use an aggressively protected nickname without identifying to it first, or you do not identify to a protected nickname within 60 seconds, you will be Guested as usual, however, instead of using services Enforcers, services will now place a temporary qline on the nickname. To get around this, you can either wait for a while, then try to use the nick, disconnect and retry, or, use /ns SIDENTIFY nickname password.
Example:
/identify Surel MyP4ss
This method is the fastest way to get access and change to your nickname.