Once the code is reset, you can proceed with the standard offline activation process on the target machine.
But her license key was not off-grid.
With your internet-connected device, open a browser and go to the . nessus offline activation license already in use full
Reinstalling Nessus on the same machine after an OS wipe without resetting the license. Once the code is reset, you can proceed
Log into your offline Nessus scanner host via the command line (Terminal for Linux/macOS or Command Prompt as Administrator for Windows). Once the code is reset
Sometimes, the issue is a simple communication error with Tenable's servers.