No, support resets are free for legitimate license owners. However, repeated resets may raise questions about misuse.
Once the code is reset, follow these steps to register your offline scanner:
: You accidentally attempted to reuse a single-instance Nessus Professional license across multiple active platforms. Step-by-Step Resolution Guide nessus offline activation license already in use full
Encountering the error is a classic sign of license slot exhaustion caused by leftover activations on old or unreachable scanners. Fortunately, the solution is straightforward:
sudo systemctl stop nessusd
Paste your 40-character into the top text box.
Note: Tenable limits how many times you can manually reset a license via the portal within a specific timeframe (usually a few times per year). If you have exceeded this limit, you must contact Tenable Support to request a manual reset. Step 2: Generate a New Challenge Code No, support resets are free for legitimate license owners
The "License Already in Use" error indicates that the Tenable licensing server believes the activation code is already bound to a different machine (or an older installation of the same machine). Because offline machines cannot communicate directly with Tenable to "release" the license automatically, the licensing system locks the code to prevent over-utilization. Common Causes
Nessus was uninstalled or reinstalled without first resetting or deregistering the license from the previous instance. Step-by-Step Resolution Guide Encountering the error is a