If your FRITZ!Box is running a recent firmware version, WireGuard is the fastest and easiest method.
Import this file into the WireGuard app on your Mac and click Activate . 2. The Native Way: IPSec (Legacy)
For older FRITZ!Box models or firmware, macOS has a built-in VPN client that supports the IPSec protocol used by AVM.
Enter the credentials provided by the FRITZ!Box in the . Third-Party Assistance