源服务器目前拒绝复制请求!!

死在问题上的我

我公司有两台DC一台是DC6 FSMO角色全在上面，还一台是DC3，现在是DC6复制DC3正常，DC3复制DC6就提示源服务器目前拒绝复制请求，下面是是Dcdiag测试结果请各位大虾帮忙分析一下。

Domain Controller Diagnosis
Performing initial setup:
   * Verifying that the local machine DC6, is a DC.
   * Connecting to directory service on server DC6.
   * Collecting site info.
   * Identifying all servers.
   * Identifying all NC cross-refs.
   * Found 2 DC(s). Testing 1 of them.
   Done gathering initial info.
Doing initial required tests
   
   Testing server: Default-First-Site-Name\DC6
      Starting test: Connectivity
         * Active Directory LDAP Services Check
         * Active Directory RPC Services Check
         ......................... DC6 passed test Connectivity
Doing primary tests
   
   Testing server: Default-First-Site-Name\DC6
      Starting test: Replications
         * Replications Check
         * Replication Latency Check
            DC=ForestDnsZones,DC=sf168,DC=com
               Latency information for 1 entries in the vector were ignored.
                  1 were retired Invocations.  0 were either: read-only replicas and are not verifiably latent, or dc's no longer replicating this nc.  0 had no latency information (Win2K DC).  
            DC=DomainDnsZones,DC=sf168,DC=com
               Latency information for 1 entries in the vector were ignored.
                  1 were retired Invocations.  0 were either: read-only replicas and are not verifiably latent, or dc's no longer replicating this nc.  0 had no latency information (Win2K DC).  
            CN=Schema,CN=Configuration,DC=sf168,DC=com
               Latency information for 1 entries in the vector were ignored.
                  1 were retired Invocations.  0 were either: read-only replicas and are not verifiably latent, or dc's no longer replicating this nc.  0 had no latency information (Win2K DC).  
            CN=Configuration,DC=sf168,DC=com
               Latency information for 1 entries in the vector were ignored.
                  1 were retired Invocations.  0 were either: read-only replicas and are not verifiably latent, or dc's no longer replicating this nc.  0 had no latency information (Win2K DC).  
            DC=sf168,DC=com
               Latency information for 1 entries in the vector were ignored.
                  1 were retired Invocations.  0 were either: read-only replicas and are not verifiably latent, or dc's no longer replicating this nc.  0 had no latency information (Win2K DC).  
         ......................... DC6 passed test Replications
      Test omitted by user request: Topology
      Test omitted by user request: CutoffServers
      Starting test: NCSecDesc
         * Security Permissions check for all NC's on DC DC6.
         * Security Permissions Check for
           DC=ForestDnsZones,DC=sf168,DC=com
            (NDNC,Version 2)
         * Security Permissions Check for
           DC=DomainDnsZones,DC=sf168,DC=com
            (NDNC,Version 2)
         * Security Permissions Check for
           CN=Schema,CN=Configuration,DC=sf168,DC=com
            (Schema,Version 2)
         * Security Permissions Check for
           CN=Configuration,DC=sf168,DC=com
            (Configuration,Version 2)
         * Security Permissions Check for
           DC=sf168,DC=com
            (Domain,Version 2)
         ......................... DC6 passed test NCSecDesc
      Starting test: NetLogons
         * Network Logons Privileges Check
         Verified share \\DC6\netlogon
         Verified share \\DC6\sysvol
         ......................... DC6 passed test NetLogons
      Starting test: Advertising
         The DC DC6 is advertising itself as a DC and having a DS.
         The DC DC6 is advertising as an LDAP server
         The DC DC6 is advertising as having a writeable directory
         The DC DC6 is advertising as a Key Distribution Center
         The DC DC6 is advertising as a time server
         The DS DC6 is advertising as a GC.
         ......................... DC6 passed test Advertising
      Starting test: KnowsOfRoleHolders
         Role Schema Owner = CN=NTDS Settings,CN=DC6,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=sf168,DC=com
         Role Domain Owner = CN=NTDS Settings,CN=DC6,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=sf168,DC=com
         Role PDC Owner = CN=NTDS Settings,CN=DC6,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=sf168,DC=com
         Role Rid Owner = CN=NTDS Settings,CN=DC6,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=sf168,DC=com
         Role Infrastructure Update Owner = CN=NTDS Settings,CN=DC6,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=sf168,DC=com
         ......................... DC6 passed test KnowsOfRoleHolders
      Starting test: RidManager
         * Available RID Pool for the Domain is 3107 to 1073741823
         * DC6.sf168.com is the RID Master
         * DsBind with RID Master was successful
         * rIDAllocationPool is 1107 to 1606
         * rIDPreviousAllocationPool is 1107 to 1606
         * rIDNextRID: 1325
         ......................... DC6 passed test RidManager
      Starting test: MachineAccount
         Checking machine account for DC DC6 on DC DC6.
         * SPN found DAP/DC6.sf168.com/sf168.com
         * SPN found DAP/DC6.sf168.com
         * SPN found DAP/DC6
         * SPN found :LDAP/DC6.sf168.com/SF168
         * SPN found :LDAP/23c13c0c-524a-4ed0-ae57-2363d1d6f9b6._msdcs.sf168.com
         * SPN found :E3514235-4B06-11D1-AB04-00C04FC2DCD2/23c13c0c-524a-4ed0-ae57-2363d1d6f9b6/sf168.com
         * SPN found :HOST/DC6.sf168.com/sf168.com
         * SPN found :HOST/DC6.sf168.com
         * SPN found :HOST/DC6
         * SPN found :HOST/DC6.sf168.com/SF168
         * SPN found :GC/DC6.sf168.com/sf168.com
         ......................... DC6 passed test MachineAccount
      Starting test: Services
         * Checking Service: Dnscache
         * Checking Service: NtFrs
         * Checking Service: IsmServ
         * Checking Service: kdc
         * Checking Service: SamSs
         * Checking Service: LanmanServer
         * Checking Service: LanmanWorkstation
         * Checking Service: RpcSs
         * Checking Service: w32time
         * Checking Service: NETLOGON
         ......................... DC6 passed test Services
      Test omitted by user request: OutboundSecureChannels
      Starting test: ObjectsReplicated
         DC6 is in domain DC=sf168,DC=com
         Checking for CN=DC6,OU=Domain Controllers,DC=sf168,DC=com in domain DC=sf168,DC=com on 1 servers
            Object is up-to-date on all servers.
         Checking for CN=NTDS Settings,CN=DC6,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=sf168,DC=com in domain CN=Configuration,DC=sf168,DC=com on 1 servers
            Object is up-to-date on all servers.
         ......................... DC6 passed test ObjectsReplicated
      Starting test: frssysvol
         * The File Replication Service SYSVOL ready test
         File Replication Service's SYSVOL is ready
         ......................... DC6 passed test frssysvol
      Starting test: frsevent
         * The File Replication Service Event log test
         ......................... DC6 passed test frsevent
      Starting test: kccevent
         * The KCC Event log test
         Found no KCC errors in Directory Service Event log in the last 15 minutes.
         ......................... DC6 passed test kccevent
      Starting test: systemlog
         * The System Event log test
         An Error Event occured.  EventID: 0xC25A001D
            Time Generated: 05/12/2011   17:39:44
            (Event String could not be retrieved)
         ......................... DC6 failed test systemlog
      Test omitted by user request: VerifyReplicas
      Starting test: VerifyReferences
         The system object reference (serverReference)
         CN=DC6,OU=Domain Controllers,DC=sf168,DC=com and backlink on
         CN=DC6,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=sf168,DC=com
         are correct.
         The system object reference (frsComputerReferenceBL)
         CN=DC6,CN=Domain System Volume (SYSVOL share),CN=File Replication Service,CN=System,DC=sf168,DC=com
         and backlink on CN=DC6,OU=Domain Controllers,DC=sf168,DC=com are
         correct.
         The system object reference (serverReferenceBL)
         CN=DC6,CN=Domain System Volume (SYSVOL share),CN=File Replication Service,CN=System,DC=sf168,DC=com
         and backlink on
         CN=NTDS Settings,CN=DC6,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=sf168,DC=com
         are correct.
         ......................... DC6 passed test VerifyReferences
      Test omitted by user request: VerifyEnterpriseReferences
      Test omitted by user request: CheckSecurityError
   
   Running partition tests on : ForestDnsZones
      Starting test: CrossRefValidation
         ......................... ForestDnsZones passed test CrossRefValidation
      Starting test: CheckSDRefDom
         ......................... ForestDnsZones passed test CheckSDRefDom
   
   Running partition tests on : DomainDnsZones
      Starting test: CrossRefValidation
         ......................... DomainDnsZones passed test CrossRefValidation
      Starting test: CheckSDRefDom
         ......................... DomainDnsZones passed test CheckSDRefDom
   
   Running partition tests on : Schema
      Starting test: CrossRefValidation
         ......................... Schema passed test CrossRefValidation
      Starting test: CheckSDRefDom
         ......................... Schema passed test CheckSDRefDom
   
   Running partition tests on : Configuration
      Starting test: CrossRefValidation
         ......................... Configuration passed test CrossRefValidation
      Starting test: CheckSDRefDom
         ......................... Configuration passed test CheckSDRefDom
   
   Running partition tests on : sf168
      Starting test: CrossRefValidation
         ......................... sf168 passed test CrossRefValidation
      Starting test: CheckSDRefDom
         ......................... sf168 passed test CheckSDRefDom
   
   Running enterprise tests on : sf168.com
      Starting test: Intersite
         Skipping site Default-First-Site-Name, this site is outside the scope
         provided by the command line arguments provided.
         ......................... sf168.com passed test Intersite
      Starting test: FsmoCheck
         GC Name: \\DC6.sf168.com
         Locator Flags: 0xe00001fd
         PDC Name: \\DC6.sf168.com
         Locator Flags: 0xe00001fd
         Time Server Name: \\DC6.sf168.com
         Locator Flags: 0xe00001fd
         Preferred Time Server Name: \\DC6.sf168.com
         Locator Flags: 0xe00001fd
         KDC Name: \\DC6.sf168.com
         Locator Flags: 0xe00001fd
         ......................... sf168.com passed test FsmoCheck
      Test omitted by user request: DNS
      Test omitted by user request: DNS