Nessus Offline Activation License Already In Use //free\\ -

Enter your newly generated and your Activation Code .

: Reinstalling the OS or deleting a Nessus instance without first deactivating the license leaves the code "locked" to the old instance. Hostname Changes nessus offline activation license already in use

Only the Primary Contact or assigned Product Manager for the account has the permissions required to reset an activation code. Step 2: Generate a New Challenge Code Enter your newly generated and your Activation Code

in the Tenable portal before the offline registration page will accept it again Step 2: Generate a New Challenge Code in

link. This unlinks the code from the previous machine and makes it available for a new registration. 2. Generate a New Challenge Code

If the old machine is still accessible, you can try to "unlink" it locally by running nessuscli fetch --deactivate while it has an internet connection, though this is rarely possible in air-gapped environments.

If you have access to Tenable support or portal (recommended)