Kaspersky - Endpoint Security Key File New

1. Adding the Key to the Administration Server (Centralized)

| Error Message | Probable Cause | Solution | | :--- | :--- | :--- | | "Invalid key file" | The file is corrupted or not a valid KES key (e.g., it’s for Kaspersky Internet Security). | Re-download the key from your Kaspersky account. Ensure the file extension is .key . | | "License has expired" | You accidentally used an old, expired key instead of the new one. | Double-check the file name. The new key typically has a later date in its metadata. | | "The key file does not match the application version" | You are trying to use a KES 11 key on KES 12, or vice versa. | Contact support for a version-compatible upgrade key. | | "Exceeded the maximum number of devices" | Your new key covers 25 devices, but you are applying it to 30. | Uninstall KES from unmanaged devices or purchase additional licenses. | | "Unable to connect to activation server" | The endpoint lacks internet or proxy settings are wrong. | Configure the proxy in KES settings or use offline activation via the command line. | kaspersky endpoint security key file new

Kaspersky provides two primary ways to license your endpoint protection: Ensure the file extension is