I figured out the exact file to modify (or delete): “C:/Users/your_username/AppData/Roaming/snapmaker-luban/machine.json”
Steps:
- Close Snapmaker Luban (if open).
- Navigate to the file above, and open it.
- Either delete the “machine.json” file entirely, or open it up and modify it – renaming or deleting the “server” section (shown below). [modifying is arguably better, since avoids welcome-dialog reshowing in Luban]
- Open Snapmaker Luban again; it should be able to connect fine again.