I’m trying to set up a tracking backup system with a Mac mini running Mojave as the Main and a MacBook running Big Sur as the Aux. Both machines are running R3. I have them both connected to the same network via a network switch. I’ve tripled checked IP addresses. They are both on the same network ID with different host IDs, and I can ping the Macs from one another via Terminal. However, when I open Vista on the Aux Mac, a tracking backup notification doesn’t pop up on the Main Mac like the manual says should happen. The Aux Mac also doesn’t show up under the Tracking Backup menu option. What am I missing?