Why Does Kerberos Authentication Fail With Clock Skew Errors (October 2026) Guide
Kerberos authentication fails with clock skew errors when the time difference between the client machine and the Key Distribution Center (KDC) exceeds the protocol’s built-in 5-minute tolerance window. This triggers the error KRB_AP_ERR_SKEW, commonly displayed as “Clock skew too great,” blocking all Kerberos-based authentication until the clocks are resynchronized using NTP. If you have ever … Read more
