If you have run out of networked licenses for all the client PCs that want to claim them from the server, then you need to delete one or more PC names from the list. To do this:
First, as the NavisWorks License server will need to be restarted, get everybody who is accessing the server to close JetStream and go to the Services dialog (from Administration Tools) and stop the NavisWorks Licensing service.
In the License Manager, go to the Current Licenses tab, click on the serial number of the networked product and click Properties
There should be a semi-colon (;) seperated list of all the PCs that have access to the networked licenses in the text box called User machine locking . Delete the PC name that you want to prevent from accessing networked license.
Click OK on the dialog to close it and close the License Manager.
Restart the NavisWorks Licensing service in the Windows Services panel, on the server.
Before any other JetStream client requests licenses from the server, set up the client that couldn't previously access a license from the server, as described in Setting up a client