處理 Kerberos 驗證要求時，KDC 遇到重複的名稱。重複的名稱是 %1 (類型為 %2)。這可能造成驗證錯誤或降級到 NTLM。為避免發生這個狀況，請移除在 Active Directory 中 %1 的重複項目。

The KDC encountered duplicate names while processing a Kerberos authentication request. The duplicate name is %1 (of type %2). This may result in authentication failures or downgrades to NTLM. In order to prevent this from occuring remove the duplicate entries for %1 in Active Directory.