The Spine Desktop controls the users permissions in Revit, access to Spine Projects and that the Revit file respond with the right Spine Project.
Therefore users must be logged into the Spine Desktop to use the Revit plugin.
Below are some messages users can receive in Revit, when there is connection problems.
When a user is not logged into the Spine Desktop, this message appears when trying to refresh the license
Log into the Desktop and make sure you are connected to the internet
When a user is logged into the Spine Desktop, but is missing a license, this message appears when opening Revit
Try to refresh and contact your Company Administrator if you still are missing a license
When a user is logged into the Spine Desktop, but is missing a license, this message appears when trying to refresh the license
Contact the Company Administrator to get a license
The connection between the Reivt plugin and the Spine Desktop can also be blocked by firewalls and VPN connections. Check out these settings.