ERROR_WINHTTP_SECURE_FAILURE

One or more errors were found in the Secure Sockets Layer (SSL) certificate sent by the server.

Matched as: the code as given (hex)

One or more errors were found in the Secure Sockets Layer (SSL) certificate sent by the server. To determine what type of error was encountered, check for a WINHTTP_CALLBACK_STATUS_SECURE_FAILURE notification in a status callback function. For more information, see WINHTTP_STATUS_CALLBACK.

Other names

• ERROR_INTERNET_DECODING_FAILED: WinINet failed to perform content decoding on the response. For more information, see the [**Content Encoding**] topic.

Source: WinHTTP Error Messages · CC-BY-4.0 (MicrosoftDocs/sdk-api, repo license verified 2026-10-09) · retrieved 2026-10-09