Thank you for the response. I knew about the DTMF method of switching connectors/profiles, and have used it. But I was using/trying the Wires-X button method.
If you look/read the "Connectors" section of the online manual (eg. https://manuals.sharkrf.com/openspot4/en/ysfreflector-connector.html#page-top), there is a line that states "You can also use the Wires-X® button menu of your radio to select/search for servers."
This was the problem I was having. The radio does not seem to want to connect to the openSPOT4 Pro using the Wires-X button.
In any case, I have it working now. For now. Take into account that I was only connecting to FCS, YSF, and DMR.
Sidenote: the openSPOT is a pleasure to use and I've recommended it to my friends. Specially with the SALE going on 🙂
73 de KX7TL