NetLogon无法启动造成Exchange无法启动，事件ID：3210

求救！我的Exchange不能启动了，怎么办啊！
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http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/Q153/7/19.ASP&NoWebContent=1

Event ID: 3210
Source: Netlogon
Type: Error
Description: Failed to authenticate with

 1<computer name="">, a Windows NT   
 2domain controller for domain <domain name="">.   
 3Data word: c0000022   
 4  
 5Event ID: 7023   
 6Source: Service Control Manager   
 7Type: Error   
 8Description: Netlogon service terminated with the following error   
 9message: Access Denied.   
10  
11http://support.microsoft.com/default.aspx?scid=kb;en-us;Q137987   
12  
13主要原因：因为NT4.0 BDC和PDC不能同步。</domain></computer>