Active Directory Error 0x51 Occurred
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An Active Directory Error 0x51 Occurred When Trying To Check Server
by: Active Directory Error 0x51 occurred when trying to check an active directory could not be contacted the suitability of server '
Active Directory Error 0x51 Ldap Server Unavailable
there are no issues with Domain Controllers or AD in this environment. The server it is citing in the error has been retired - it was gracefully dcpromo'ed down and removed from the environment. DNS has no record of it, nor is it located anywhere else. We are not able
Active Directory Response The Ldap Server Is Unavailable Exchange 2013
to log into Outlook Web App either with authentication failed errors - and I can't help but expect these 2 issues are related? I tried hard coding the Configuration Domain Controller at the org level, as well as using the -staticdomaincontrollers and -staticglobalcatalogservers with the "Set-ExchangeServer" powershell command - no luck.... System settings of the exchange 2010 servers show they are pointing to the correct DCs - but I still get this error accompanied with long delays in rendering windows in EMC. Extremely frustrating..... I have an issue logged with MS now, but they aren't looking at them until Nov 9. Has anyone seen this issue at all? More info on the OWA config - using Form based auth, and I'm not able to perform a simple test-owaconnectivity -mailboxcredential (get-credential\username) -allowuntrustedcertificate -allowinsecurelogon - please help Thursday, November 05, 2009 4:05 PM Reply | Quote All replies 0 Sign in
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The Ldap Server Is Unavailable Exchange 2010
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Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a https://www.experts-exchange.com/questions/27726429/Exchange-2010-Active-Directory-error-0x51-LDAP.html Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website http://www.networksteve.com/exchange/topic.php/Exchange_2013_SP1_CU11_Install_Fails_-_Active_directory_response/?TopicId=62548&Posts=4 Testing Store Headlines Experts Exchange > Questions > Exchange 2010 - Active Directory error 0x51 LDAP Want to Advertise Here? Solved Exchange 2010 - Active Directory error 0x51 LDAP Posted active directory on 2012-05-21 Exchange Active Directory 1 Verified Solution 7 Comments 4,285 Views Last Modified: 2014-04-14 Hi all. We've got two domain controllers. The second is a new one. First DC ist Windows 2008 Standard, second Windows 2008 R2 Enterprise. The Exchange Server is 2010 Standard Service Pack 2. We need the second DC for failover if the first goes active directory error down. We tried this szenario (shut down the first domaincontroller) but Exchange is not work on. We tried to Add the second DC as PreferredServer with the "Set-ADServerSettings" Command in the PowerShell. [PS] C:\>Set-ADServerSettings -PreferredServer dc2.local We get the following error message: An Active Directory error 0x51 occured when trying to check the suitability of server dc2.local 'Active Directory response: The LDAP server is unavailable. CategoryInfo: NotSpecified: (0:Int32) [Set-ADServerSettings], SuitabilityDirectoryException FullyQulifiedErrorid: 96AD2D25, Microsoft.Exchange.Management.ADServerSettings.SetADServerSettings 0 Question by:Opusretis Facebook Twitter LinkedIn Google Best Solution byOpusretis Yes we use the AD integrated DNS - both DC's are DNS Server and they are replicated. The Exchange is pointing in his networksettings primarly to dc1 and alternatively to dc2. Go to Solution 7 Comments LVL 13 Overall: Level 13 Active Directory 7 Exchange 4 Message Active 7 days ago Expert Comment by:Kini Pradeep2012-05-22 couple of things first. once you install the windows 2008 r2 DC, it is advisable to move the FSMO roles from 2008 to R2. Is the 2008 R2 DC also a Global catalog server ? I
2013 SP1 CU11 install. I'm trying to Upgradefrom Exchange Server 2013 SP1 CU9. Searchinggoogle, this appears to have been an issue many versions back when talking to a DC that is not a GC. The domain controller listed in the error is in facta DC with the Infrastructure Master role so is not a GC. There is a GC in the site that is up and functional. I don't see any errors on the domain controller in question. The servers appears to be healthy. Has anyone come across this problem before? Error: The following error was generated when "$error.Clear(); initialize-ExchangeUniversalGroups -DomainController $RoleDomainController -ActiveDirectorySplitPermissions $RoleActiveDirectorySplitPermissions " was run: "Microsoft.Exchange.Data.Directory.SuitabilityDirectoryException: An Active Directory error 0x51 occurred when trying to check the suitability of server 'DC01.mydomain.com'. Error: 'Active directory response: The LDAP server is unavailable.' ---> System.DirectoryServices.Protocols.LdapException: The LDAP server is unavailable. at System.DirectoryServices.Protocols.LdapConnection.Connect() at System.DirectoryServices.Protocols.LdapConnection.BindHelper(NetworkCredential newCredential, Boolean needSetCredential) at Microsoft.Exchange.Data.Directory.PooledLdapConnection.BindWithLogging() at Microsoft.Exchange.Data.Directory.PooledLdapConnection.TryBindWithRetry(Int32 maxRetries, ADErrorRecord& errorRecord) --- End of inner exception stack trace --- at Microsoft.Exchange.Data.Directory.TopologyDiscovery.SuitabilityVerifier.CheckIsServerSuitable(String fqdn, Boolean isGlobalCatalog, NetworkCredential credentials, String& writableNC) at Microsoft.Exchange.Data.Directory.ConnectionPoolManager.GetConnection(ConnectionType connectionType, String partitionFqdn, ADObjectId domain, String serverName, Int32 port, NetworkCredential credential) at Microsoft.Exchange.Data.Directory.ConnectionPoolManager.GetConnection(ConnectionType connectionType, String partitionFqdn, NetworkCredential networkCredential, String serverName, Int32 port) at Microsoft.Exchange.Data.Directory.ADDataSession.GetConnection(String preferredServer, Boolean isWriteOperation, String optionalBaseDN, ADObjectId& rootId, ADScope scope) at Microsoft.Exchange.Data.Directory.ADDataSession.GetReadConnection(String preferredServer, String optionalBaseDN, ADObjectId& rootId, ADRawEntry scopeDeteriminingObject) at Microsoft.Exchange.Data.Directory.ADGenericReader.GetNextResultCollection(Type controlType, DirectoryControl& responseControl) at Microsoft.Exchange.Data.Directory.ADPagedReader`1.GetNextResultCollection() at Microsoft.Exchange.Data.Directory.ADGenericPagedReader`