"Unable to open the VPN connection" for RDM 2025.3.0.9 under Ubuntu 25.10

Hi everyone,

I'm trying to migrate from Windows 10 to Ubuntu 25.10 and am running into a problem when using my existing data source XML file. While I was able to import it properly, none of the connections work and I only get the following error message. But I don't see what the actual problem is when trying to create the VPN connection.

Any ideas on where I can get more details from? Thanks!