I am having a hard time Replicating a site in AD.  It gives me an "Access Denied" error when I run Replmon.  I also did a DCDIAG test and got these results.  The site is called Woburn.  Any insight would be huge. C:\Program Files\Support Tools>dcdiag Domain Controller Diagnosis Performing initial setup:    Done gathering initial info. Doing initial required tests    Testing server: Horsham\HQDC01       Starting test: Connectivity          ......................... HQDC01 passed test Connectivity Doing primary tests    Testing server: Horsham\HQDC01       Starting test: Replications          [Replications Check,HQDC01] A recent replication attempt failed:             From AURORA to HQDC01             Naming Context: DC=ForestDnsZones,DC=CORPORATE,DC=LOCAL             The replication generated an error (1256):             The remote system is not available. For information about network tr oubleshooting, see Windows Help.             The failure occurred at 2005-10-03 12:45:58.             The last success occurred at 2005-09-23 04:45:48.             496 failures have occurred since the last success.          [Replications Check,HQDC01] A recent replication attempt failed:             From AURORA to HQDC01             Naming Context: DC=DomainDnsZones,DC=CORPORATE,DC=LOCAL             The replication generated an error (1256):             The remote system is not available. For information about network tr oubleshooting, see Windows Help.             The failure occurred at 2005-10-03 12:45:58.             The last success occurred at 2005-09-23 04:45:48.             496 failures have occurred since the last success.          [Replications Check,HQDC01] A recent replication attempt failed:             From AURORA to HQDC01             Naming Context: CN=Schema,CN=Configuration,DC=CORPORATE,DC=LOCAL             The replication generated an error (1722):             The RPC server is unavailable.             The failure occurred at 2005-10-03 12:46:47.             The last success occurred at 2005-09-23 04:45:46.             496 failures have occurred since the last success. ^C C:\Program Files\Support Tools>dcdiag /test:securityerror Test not found. Please re-enter a valid test name. C:\Program Files\Support Tools>dcdiag /test:checksecurityerror Domain Controller Diagnosis Performing initial setup:    Done gathering initial info. Doing initial required tests    Testing server: Horsham\HQDC01       Starting test: Connectivity          ......................... HQDC01 passed test Connectivity Doing primary tests    Testing server: Horsham\HQDC01       Starting test: CheckSecurityError          Source DC AURORA has possible security error (1722).  Diagnosing...                No KDC found for domain CORPORATE.LOCAL in site AURORA (1355, NUL L)                [AURORA] Unable to contact this DC.  Cannot continue diagnosing e rrors with this DC.          [LINDENWOLD] DsBindWithSpnEx() failed with error 1722,          The RPC server is unavailable..          Ignoring DC LINDENWOLD in the convergence test of object CN=HQDC01,OU=D omain Controllers,DC=CORPORATE,DC=LOCAL, because we cannot connect!          [AURORA] DsBindWithSpnEx() failed with error 1722,          The RPC server is unavailable..          Ignoring DC AURORA in the convergence test of object CN=HQDC01,OU=Domai n Controllers,DC=CORPORATE,DC=LOCAL, because we cannot connect!             Authoritative attribute dBCSPwd on HQDC02 (writeable)                usnLocalChange = 14581070                LastOriginatingDsa = HQDC01                usnOriginatingChange = 51810650                timeLastOriginatingChange = 2005-09-28 23:32:51                VersionLastOriginatingChange = 15             Out-of-date attribute dBCSPwd on WOBURN (writeable)                usnLocalChange = 11154431                LastOriginatingDsa = HQDC01                usnOriginatingChange = 49944195                timeLastOriginatingChange = 2005-08-29 16:32:50                VersionLastOriginatingChange = 14             Authoritative attribute lmPwdHistory on MAITLAND (writeable)                usnLocalChange = 7682906                LastOriginatingDsa = HQDC01                usnOriginatingChange = 51810650                timeLastOriginatingChange = 2005-09-28 23:32:51                VersionLastOriginatingChange = 15             Out-of-date attribute lmPwdHistory on WOBURN (writeable)                usnLocalChange = 11154431                LastOriginatingDsa = HQDC01                usnOriginatingChange = 49944195                timeLastOriginatingChange = 2005-08-29 16:32:50                VersionLastOriginatingChange = 14             Authoritative attribute ntPwdHistory on HAVERHILL (writeable)                usnLocalChange = 120475                LastOriginatingDsa = HQDC01                usnOriginatingChange = 51810650                timeLastOriginatingChange = 2005-09-28 23:32:51                VersionLastOriginatingChange = 15             Out-of-date attribute ntPwdHistory on WOBURN (writeable)                usnLocalChange = 11154431                LastOriginatingDsa = HQDC01                usnOriginatingChange = 49944195                timeLastOriginatingChange = 2005-08-29 16:32:50                VersionLastOriginatingChange = 14             Authoritative attribute pwdLastSet on WELLESLEY (writeable)                usnLocalChange = 2486866                LastOriginatingDsa = HQDC01                usnOriginatingChange = 51810650                timeLastOriginatingChange = 2005-09-28 23:32:51                VersionLastOriginatingChange = 15             Out-of-date attribute pwdLastSet on WOBURN (writeable)                usnLocalChange = 11154431                LastOriginatingDsa = HQDC01                usnOriginatingChange = 49944195                timeLastOriginatingChange = 2005-08-29 16:32:50                VersionLastOriginatingChange = 14             Authoritative attribute supplementalCredentials on PORTSMOUTH (write able)                usnLocalChange = 8326916                LastOriginatingDsa = HQDC01                usnOriginatingChange = 51810651                timeLastOriginatingChange = 2005-09-28 23:32:51                VersionLastOriginatingChange = 14             Out-of-date attribute supplementalCredentials on WOBURN (writeable)                usnLocalChange = 11154431                LastOriginatingDsa = HQDC01                usnOriginatingChange = 49944196                timeLastOriginatingChange = 2005-08-29 16:32:50                VersionLastOriginatingChange = 13             Authoritative attribute unicodePwd on HOWELL (writeable)                usnLocalChange = 487272                LastOriginatingDsa = HQDC01                usnOriginatingChange = 51810650                timeLastOriginatingChange = 2005-09-28 23:32:51                VersionLastOriginatingChange = 15             Out-of-date attribute unicodePwd on WOBURN (writeable)                usnLocalChange = 11154431                LastOriginatingDsa = HQDC01                usnOriginatingChange = 49944195                timeLastOriginatingChange = 2005-08-29 16:32:50                VersionLastOriginatingChange = 14          Unable to verify the convergence of this machine account (CN=HQDC01,OU= Domain Controllers,DC=CORPORATE,DC=LOCAL) on this domain (DC=CORPORATE,DC=LOCAL) .  Does the machine account password need reseting?          ......................... HQDC01 failed test CheckSecurityError    Running partition tests on : ForestDnsZones    Running partition tests on : DomainDnsZones    Running partition tests on : Schema    Running partition tests on : Configuration    Running partition tests on : CORPORATE    Running enterprise tests on : CORPORATE.LOCAL Ty, Tommy