ERROR_WINHTTP_SECURE_CERT_CN_INVALID

Returned when a certificate CN name does not match the passed value (equivalent to a **CERT_E_CN_NO_MATCH** error).

Matched as: the code as given (hex)

Other names

• ERROR_INTERNET_SEC_CERT_CN_INVALID: SSL certificate common name (host name field) is incorrect for example, if you entered `www.server.com` and the common name on the certificate says `www.different.com`.

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