0x00002B0B
WSA_QOS_EFILTERSTYLE
An invalid QOS filter style was used.
win32decimal 11019Networking
Matched as: the code as given (hex)
Log a case with no specific solution
Source: System Error Codes (9000-11999) - Win32 apps · CC-BY-4.0 (MicrosoftDocs/sdk-api, repo license verified 2026-10-09) · retrieved 2026-10-09