0x00002F47

ERROR_WINHTTP_CANNOT_CALL_AFTER_OPEN

Returned by the [**HttpRequest**] object if a specified option cannot be requested after the [**Open**] method has been called.

win32decimal 12103Networking

Matched as: the code as given (hex)

Log a case with no specific solution

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