Nessus License Already In Use |link| -

Attempting to activate the same license key on a second machine (or reinstalled OS with new instance ID) triggers this error.

If you are performing a planned migration, you can often "float" the license. Reset Registration and Erase Settings (Nessus Command Line)

: Run nessuscli fetch --register [Your-Activation-Code] . Important Restrictions nessus license already in use

: Open the terminal and run: /opt/nessus/sbin/nessuscli fetch --deactivate 3. Re-register Your Current Instance

Before you bang your head against the keyboard, let’s walk through why this happens and the two easiest ways to fix it. Attempting to activate the same license key on

If successful, reactivate on the new instance:

They will reset the code on their end and email you confirmation. Important Restrictions : Open the terminal and run:

: Only the Primary Contact or Product Owner can perform a reset in the Tenable Community portal.