If you are moving SecureCRT 8.7.3 to a new machine, you can "fix" activation issues by using the built-in export tool:

. Enter the Name, Serial Number, License Key, and Date exactly as provided in your official fulfillment email. Check for Configuration Corruptions

If your license has expired, VanDyke offers discounted upgrade pricing. A single-user upgrade for SecureCRT starts around $48.00 for one year of updates.

: Using a "bundle" license with a standalone installer (or vice versa) will result in an invalid key error. Step-by-Step Fix for License Registration

Before diving into the fixes, it's essential to understand the possible causes of the license key issue: