We’ve fixed this issue in DVS 4.2.4.1 version. If you see the issue, try a full DVS reinstall through Library/Application Support/Audinate/DVS/Uninstall DVS, then restart the machine, install DVS again, then restart the machine and try running DVS.
Note, DVS requires an active physical network connection to start. Please make sure you are connected to a network before contacting support about this issue.