Nessus License - Already In Use ((new))

: You may have a running instance of Nessus on a different server or virtual machine that you forgot to shut down or deactivate. How to Resolve the Error 1. Reset the Activation Code via Tenable Community

From the command line:

Activation codes can typically only be reset manually once every 10 days . 2. Manual Reset via Command Line (NessusCLI) nessus license already in use

Keep reinstalling Nessus hoping it works – each new install generates a new instance ID and will keep hitting the same error until the original registration is cleared. : You may have a running instance of