This connection has worked for me for several years without any issues. Lately, it has been more often disconnected than connected. Sometimes it will connect briefly for a few seconds on startup, but then won't reconnect again. I've checked on the Firewall settings, but can't find anything that looks out of place. These are both Windows 11 machines. Multiplicity is version 3.57 Build 00103.kvm. I even tried switching the control to the other computer, and it does the same thing. Whichever machine is the secondary, the icon will be blue, but the primary is greyed out. I suspect that it might be something in the firewall settings, but can't find specific instructions for how it should be set up. I haven't changed anything there, so why would it suddenly stop working?