: Ensure you've entered or uploaded the key correctly. Double-check that the key is for your device's model and that it's not been used on another device.
If your Firebox’s system clock is incorrect, it may reject the feature key. download feature key watchguard work
Your Firebox must be registered to your account using its serial number. : Ensure you've entered or uploaded the key correctly
Since most downloads today happen over encrypted connections (HTTPS), WatchGuard’s DPI (Deep Packet Inspection) verify your subscription
Follow the on-screen instructions to name your device and assign it to your account. Step 2: Download the Feature Key File
Click the Sync button. The Firebox will connect to the WatchGuard licensing server, verify your subscription, and download the latest key file automatically.