How to troubleshoot activation problems in Kaspersky Endpoint Security for Windows

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Kaspersky Endpoint Security 12 for Windows

How to troubleshoot activation problems in Kaspersky Endpoint Security for Windows

Latest update: June 26, 2024 ID: 16047

Show applications and versions that this article concerns

Kaspersky Endpoint Security 12.5 for Windows (version 12.5.0.539)
Kaspersky Endpoint Security 12.4 for Windows (version 12.4.0.467)
Kaspersky Endpoint Security 12.3 for Windows (version 12.3.0.493)
Kaspersky Endpoint Security 12.2 for Windows (version 12.2.0.462)
Kaspersky Endpoint Security 12.1 for Windows (version 12.1.0.506)
Kaspersky Endpoint Security 12 for Windows (version 12.0.0.465)
Kaspersky Endpoint Security 11.11 for Windows (version 11.11.0.452)
Kaspersky Endpoint Security 11.10 for Windows (version 11.10.0.399)
Kaspersky Endpoint Security 11.9 for Windows (version 11.9.0.351)
Kaspersky Endpoint Security 11.8 for Windows (version 11.8.0.384)
Kaspersky Endpoint Security 11.7 for Windows (version 11.7.0.669)

When activating Kaspersky Endpoint Security for Windows, you may encounter various errors and problems with the application and its components. Below is the list of the most common issues and their solutions.

Network errors

Error	Solution
Failed to convert server address. Server connection attempt failed. Operation timed out. Transport layer generic error. Unknown error (error code: 0xA0430002).	Follow these instructions.

Endpoint device operation errors

Error	Solution
Computer time is out of sync with activation server time. The date the key file was created or used is invalid. Please check the system date. Database release date does not correspond to the license term.	Follow these instructions to fix time synchronization problems on a device with Kaspersky Endpoint Security for Windows installed. If the active key status has changed to “Invalid activation date” after applying a license, you will not be able to restore the work of the current license on your device. In this case, you must replace the key with a new one or reinstall the operating system.

License key file errors

Error	Solution
Internal data incompatible with this application. Key file is not suitable for this application.	Make sure you are using an activation code or a key file for Kaspersky Endpoint Security for Windows, not for another application: Use these instructions to get the list of applications compatible with your license. Check if Kaspersky Endpoint Security for Windows or the Detection and Response component is present in the list. Also ensure that you have the Detection and Response components installed on your device in accordance with the license you are adding.
Digital signature is either missing or corrupted. Key file is corrupted.	The contents of the key file have been corrupted or modified. Reissue a key file for your license from the activation code.
Cannot add a reserve key if the corresponding license expired before the current license.	Follow these instructions.

Problems caused by missing license

Problem	Solution
Real-time protection status: Paused. Application is not activated. License has expired. All components have the "Not supported by license” status. The database update task fails with the message "License is missing" or "Component not supported by license". The installed current license disappears after a short time.	Follow these instructions.

Problems with activation of application components

Problem	Solution
Component not supported by license. Application does not support this task or the component corresponding to the task is not installed. A component has the "Not supported by license” status. Problems of activating Detection and Response components.	Follow these instructions.

What to do if the issue persists

Useful references

Incorrect license expiration date in Kaspersky Security Center
Solving Kaspersky Endpoint Security for Windows installation, updating and removal issues
Automatic distribution of a license key

Kaspersky Premium Support (MSA): High‑priority incident processing

Telephone and web ticket support. Fast response, monitoring and health check. Submit a request and activate the contract (MSA).

Kaspersky Endpoint Security for Windows: Detection of advanced threats

Control systems which prevent damage from the sensitive data theft. Management from a single console. Buy as part of Endpoint Security for Business Advanced.

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