Unable to get a Bonjour sync to work

[BLUEFROG]

@Herbgs

I’ve cleared the Port number on both computers.

You shouldn’t have Bonjour active on both Macs. One Mac is the server; one is the client. Disable it on the Mac that is the client.
And yes, you would check the checkbox on the Local Network sync location. That’s how you connect as a client.

Also, see Help > Tutorials > Sync via Bonjour or…

Bonjour Simplified

To help clarify the conditions under which Bonjour can be used, as well as show the simple steps to setting up such a sync, here are notes and steps to follow. Requirements Bonjour can be used to Sync between devices, IF: The devices are on the same network, noting it will not work over VPN. The network is private or one that allows Bonjour connections or non-standard ports. (Public and corporate WiFi sometimes disallow these.) Your firewall or an application like Little Snitch is Off or has …