0x000004EF
ERROR_PKINIT_FAILURE
The Kerberos protocol encountered an error while validating the KDC certificate during smartcard logon. There is more information in the system event log.
win32decimal 1263
Matched as: the code as given (hex)
Log a case with no specific solution
Source: System Error Codes (1000-1299) - Win32 apps · CC-BY-4.0 (MicrosoftDocs/sdk-api, repo license verified 2026-10-09) · retrieved 2026-10-09