Symptoms

While connecting from a Parallels Client, you encounter the following error:

However, licenses are shown as available from the Licensing pane within the Parallels Console.

Resolution

Try the following steps to rectify the issue:

• Stop the Publishing Agent and Redundancy Services.
• Navigate to the installation directory > appdata folder.
• Rename licensing.db and sessioncache.db to another filename.
• Start the services back up. The two .db files above will be recreated for you automatically.

Once you've completed the steps above, perform a manual reactivation of the product from the Console.