Macs on local network no longer appear in Network or Finder Sidebar for Screen Sharing

I have a Mac Mini and MacBook connected within my local network. Both Macs have System Preferences > Sharing > Screen Sharing turned **On**. For weeks I have seen each computer in the other's Finder sidebar. From there I was able to initiate Screen Sharing, browse the file system, etc. Suddenly, today, they are no longer appearing. I have restarted both Macs multiple times. I can also not connect directly to them with the Screen Sharing app. Typing the computer's name in the Connect To: results in the error: > Unable to resolve “MacName.local” > Verify the name you entered and make sure your network connection is working. Finder > Go > Connect to Server... similarly does not list any local Macs. Pressing + does strangely (re)add a shortcut to the Mac, which I've connected to before. But attempting to connect to it results in the error(s): > There was a problem connecting to the server. > URLs with the type “:” are not supported. > > There was a problem connecting to the server “MacName.local”. > The server may not exist or it is unavailable at this time. Check the server name or IP address, check your network connection, and then try again. **In modern macOS**, Big Sur or Monterey or newer, how can I reset this situation and see local network Macs in the Finder sidebar? The solutions offered in a [similar previous question](https://apple.stackexchange.com/questions/148649/shared-devices-not-appearing-in-network) no longer seem to apply in modern macOS. Those plist files are no longer present on my machines. Is there a modern way to reset this network sharing?