--- title: 4772(F) A Kerberos authentication ticket request failed. (Windows 10) description: Describes security event 4772(F) A Kerberos authentication ticket request failed. ms.pagetype: security ms.prod: w10 ms.mktglfcycl: deploy ms.sitesec: library author: Mir0sh --- # 4772(F): A Kerberos authentication ticket request failed. **Applies to** - Windows 10 - Windows Server 2016 Currently this event doesn’t generate. It is a defined event, but it is never invoked by the operating system. [4768](event-4768.md) failure event is generated instead. ***Subcategory:*** [Audit Kerberos Authentication Service](audit-kerberos-authentication-service.md)