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0x00001B99

ERROR_RDP_PROTOCOL_ERROR

The RDP protocol component %2 detected an error in the protocol stream and has disconnected the client.

win32decimal 7065

Matched as: the code as given (hex)

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Source: System Error Codes (6000-8199) - Win32 apps · CC-BY-4.0 (MicrosoftDocs/sdk-api, repo license verified 2026-10-09) · retrieved 2026-10-09