Can't connect to repository - help please

After not using Servoy for 3-4 months, I upgraded to 2.1.2 and launched it. It complains that it can’t connect ot the repository server. I have tried re-entering the repository server info, but I keep getting this message: ```
“Driver did not return a connection (driver does not recognize the URL)”.


The repository server is using MySQL, and I have tried using a couple of different MySQL drivers, to no avail. My repository server setttings in servoy.properties are identical to those of a colleague working down the hall, and he has no problem connecting. What might be causing this, and how might I go about troubleshooting it?

TIA, Peter