I am trying to monitor our exchange dag 2010 environment with SCOM 2012 and I am getting stuck on the synthetic transactions. My cashub servers are behind a load balancer and I have added an entry to the host file of one of my cashub servers so that mail.domain.com can be resolved from there. Now I am receiving the following alert and I can't seem to fix the issue. Any ideas?TCP Connectivity with Autodiscover - RPC Client Access failure (connect) The test step MailboxConnect running over protocol 'ncacn_ip_tcp' issued from test user '/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=extest_f37ed75225c7498c' failed with error: '1722(The RPC server is unavailable)'. The detailed information of the running instance context: 'UserLegacyDn = '/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=extest_f37ed75225c7498c', Mailbox = 'domain.com\extest_f37ed75225c74', UseHttp = 'False', ProxyServer = '', RpcEndServer = 'cas1.domain.com', CanContinue = 'False''. The exception: '<Null>'Verbose: Target Site = 'domain.com/Configuration/Sites/CORP'Verbose: Target Domain = 'domain.com'Verbose: Target User = '[email protected]'Verbose: Mailbox = 'domain.com\extest_f37ed75225c74', Owner = '/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=extest_f37ed75225c7498c'Verbose: SMTP address for Autodiscover request = '[email protected]'Verbose: Contacted the Autodiscover service at https://mail.domain.com/Autodiscover/Autodiscover.xml.Verbose: <?xml version="1.0"?><Autodiscover xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns:xsd="http://www.w3.org/2001/XMLSchema"; xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006";><Response xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a";><User><DisplayName>extest_f37ed75225c74</DisplayName><LegacyDN>/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=extest_f37ed75225c7498c</LegacyDN><AutoDiscoverSMTPAddress>[email protected]</AutoDiscoverSMTPAddress><DeploymentId>f828e10f-f452-45ee-83bc-b9945fb3e340</DeploymentId></User><Account><AccountType>email</AccountType><Action>settings</Action><Protocol><Type>EXCH</Type><Server>cas1.domain.com</Server><ServerDN>/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=cas1.domain.com</ServerDN><ServerVersion>738280F7</ServerVersion><MdbDN>/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=cas1.domain.com/cn=Microsoft Private MDB</MdbDN><ASUrl>https://mail.domain.com/EWS/Exchange.asmx</ASUrl><OOFUrl>https://mail.domain.com/EWS/Exchange.asmx</OOFUrl><OABUrl>https://mail.domain.com/OAB/c8d0efdf-a49a-439e-b50a-9bd10b799fd2/</OABUrl><UMUrl>https://mail.domain.com/EWS/UM2007Legacy.asmx</UMUrl><Port>0</Port><DirectoryPort>0</DirectoryPort><ReferralPort>0</ReferralPort><PublicFolderServer>CO-EXCHANGE-02.domain.com</PublicFolderServer><AD>CO-DC-04.domain.com</AD><EwsUrl>https://mail.domain.com/EWS/Exchange.asmx</EwsUrl><EcpUrl>https://mail.domain.com/ecp/</EcpUrl><EcpUrl-um>?p=customize/voicemail.aspx&exsvurl=1</EcpUrl-um><EcpUrl-aggr>?p=personalsettings/EmailSubscriptions.slab&exsvurl=1</EcpUrl-aggr><EcpUrl-mt>PersonalSettings/DeliveryReport.aspx?exsvurl=1&IsOWA=<IsOWA>&MsgID=<MsgID>&Mbx=<Mbx></EcpUrl-mt><EcpUrl-ret>?p=organize/retentionpolicytags.slab&exsvurl=1</EcpUrl-ret><EcpUrl-sms>?p=sms/textmessaging.slab&exsvurl=1</EcpUrl-sms></Protocol><Protocol><Type>EXPR</Type><Server>mail.domain.com</Server><ASUrl>https://mail.domain.com/EWS/Exchange.asmx</ASUrl><OOFUrl>https://mail.domain.com/EWS/Exchange.asmx</OOFUrl><OABUrl>https://mail.domain.com/OAB/c8d0efdf-a49a-439e-b50a-9bd10b799fd2/</OABUrl><UMUrl>https://mail.domain.com/EWS/UM2007Legacy.asmx</UMUrl><Port>0</Port><DirectoryPort>0</DirectoryPort><ReferralPort>0</ReferralPort><SSL>On</SSL><AuthPackage>Ntlm</AuthPackage><EwsUrl>https://mail.domain.com/EWS/Exchange.asmx</EwsUrl><EcpUrl>https://mail.domain.com/ecp/</EcpUrl><EcpUrl-um>?p=customize/voicemail.aspx&exsvurl=1</EcpUrl-um><EcpUrl-aggr>?p=personalsettings/EmailSubscriptions.slab&exsvurl=1</EcpUrl-aggr><EcpUrl-mt>PersonalSettings/DeliveryReport.aspx?exsvurl=1&IsOWA=<IsOWA>&MsgID=<MsgID>&Mbx=<Mbx></EcpUrl-mt><EcpUrl-ret>?p=organize/retentionpolicytags.slab&exsvurl=1</EcpUrl-ret><EcpUrl-sms>?p=sms/textmessaging.slab&exsvurl=1</EcpUrl-sms></Protocol><Protocol><Type>WEB</Type><Port>0</Port><DirectoryPort>0</DirectoryPort><ReferralPort>0</ReferralPort><Internal><OWAUrl AuthenticationMethod="Basic, Fba">https://mail.domain.com/owa/</OWAUrl><Protocol><Type>EXCH</Type><ASUrl>https://mail.domain.com/EWS/Exchange.asmx</ASUrl></Protocol></Internal><External><OWAUrl AuthenticationMethod="Fba">https://mail.domain.com/owa/</OWAUrl><Protocol><Type>EXPR</Type><ASUrl>https://mail.domain.com/EWS/Exchange.asmx</ASUrl></Protocol></External></Protocol></Account></Response></Autodiscover>Verbose: Autodiscover returned RPC endpoint = 'cas1.domain.com'Verbose: Autodiscover returned RPC Proxy endpoint = 'mail.domain.com'Verbose: Get authentication package Ntlm from the Autodiscover response.Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: Using connection parameters : 'domain.com\extest_f37ed75225c74: Rfri/TCP-IP, [cas1.domain.com/Negotiate]'Verbose: Address Book Operation = 'GetNewDSA', Input = 'userLegacyDN', Input Value = '/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=extest_f37ed75225c7498c'Verbose: Microsoft.Exchange.Rpc.ServerUnavailableException: Error 0x6ba (The RPC server is unavailable) from cli_RfrGetNewDSA EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:00.645EEInfo: Generating component: 2EEInfo: Status: 0x000006BAEEInfo: Detection location: 501EEInfo: Flags: 0EEInfo: NumberOfParameters: 4EEInfo: prm[0]: Unicode string: ncacn_ip_tcpEEInfo: prm[1]: Unicode string: cas1.domain.comEEInfo: prm[2]: Long val: 356840928 (0x1544F5E0)EEInfo: prm[3]: Long val: 1722 (0x000006BA) EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:00.645EEInfo: Generating component: 18EEInfo: Status: 0x000006BAEEInfo: Detection location: 1442EEInfo: Flags: 0EEInfo: NumberOfParameters: 1EEInfo: prm[0]: Unicode string: cas1.domain.com EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:00.645EEInfo: Generating component: 18EEInfo: Status: 0x000006BAEEInfo: Detection location: 323EEInfo: Flags: 0EEInfo: NumberOfParameters: 0 EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:00.645EEInfo: Generating component: 18EEInfo: Status: 0x000004D5EEInfo: Detection location: 313EEInfo: Flags: 0EEInfo: NumberOfParameters: 0 EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:00.645EEInfo: Generating component: 18EEInfo: Status: 0x0000274CEEInfo: Detection location: 311EEInfo: Flags: 0EEInfo: NumberOfParameters: 3EEInfo: prm[0]: Long val: 135 (0x00000087)EEInfo: prm[1]: Pointer val: 0x0EEInfo: prm[2]: Pointer val: 0x3204100A00000000 EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:00.645EEInfo: Generating component: 18EEInfo: Status: 0x0000274CEEInfo: Detection location: 318EEInfo: Flags: 0EEInfo: NumberOfParameters: 0 at ThrowRpcException(Int32 rpcStatus, String message)at Microsoft.Exchange.Rpc.RpcClientBase.ThrowRpcExceptionWithEEInfo(Int32 rpcStatus, String routineName)at Microsoft.Exchange.Rpc.Rfri.RfriRpcClient.GetNewDSA(String userDN, String& server)at Microsoft.Exchange.Monitoring.RfriClientWrapper.<>c__DisplayClass7.<GetNewDSA>b__6()at Microsoft.Exchange.Monitoring.OutlookConnectivityContext.RpcExceptionWrapper(Func`1 protectedCall)Verbose: AddressBook operation failed. Operation = 'GetReferral', Error = 'The Address Book Referral operation failed. Operation = '<GetNewDSA>b__6', returnValue = '1722', server = 'CO-CASHUB-01.domain.com', user = '/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=extest_f37ed75225c7498c', .'Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: Address Book Referral failed to return a directory server and the RpcClientAccessServer parameter wasn't specified, so Test-OutlookConnectivity will use the local Client Access server for directory (NSPI) connections.Verbose: Address Book Referral failed to return a directory server and the RpcClientAccessServer parameter wasn't specified, so Test-OutlookConnectivity will use the local Client Access server for directory (NSPI) connections.Verbose: Address Book Referral failed to return a directory server and the RpcClientAccessServer parameter wasn't specified, so Test-OutlookConnectivity will use the local Client Access server for directory (NSPI) connections.Verbose: Using connection parameters : 'domain.com\extest_f37ed75225c74: Nspi/TCP-IP, [CO-CASHUB-01.domain.com/Negotiate]'Verbose: Address Book Operation = 'Bind'Verbose: Address Book Operation = 'GetHierarchyInfo'Verbose: Address Book Operation = 'QueryHomeMDB', Input = 'primarySmtpAddress', Input Value = '[email protected]'Verbose: /o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=cas1.domain.com/cn=Microsoft Private MDBVerbose: /o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=extest_f37ed75225c7498cVerbose: Address Book Operation = 'GetNetworkAddresses', Input = 'serverLegacyDN', Input Value = '/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=cas1.domain.com'Verbose: ncacn_ip_tcp:cas1.domain.comVerbose: RPC Endpoint = 'cas1.domain.com'Verbose: Address Book Referral failed to return a directory server and the RpcClientAccessServer parameter wasn't specified, so Test-OutlookConnectivity will use the local Client Access server for directory (NSPI) connections.Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: Using connection parameters : 'domain.com\extest_f37ed75225c74: Mailbox/TCP-IP, [cas1.domain.com/Negotiate]'Debug: Mailbox Operation = 'EcDoRpcExt2', Raw Buffer: '', Aux Buffer: '80 00 01 02 00 00 00 00 01 00 20 00 56 00 00 00 20 00 00 00 20 00 00 00 00 00 20 00 02 00 00 00 43 00 4F 00 2D 00 43 00 41 00 53 00 48 00 55 00 42 00 2D 00 30 00 31 00 2E 00 67 00 69 00 6C 00 62 00 61 00 6E 00 65 00 63 00 6F 00 2E 00 63 00 6F 00 6D 00 00 00 65 00 78 00 74 00 65 00 73 00 74 00 5F 00 66 00 33 00 37 00 65 00 64 00 37 00 35 00 32 00 32 00 35 00 63 00 37 00 34 00 00 00 60 00 02 0B 01 00 00 00 25 1C 91 5B 09 C8 40 43 99 28 69 86 76 6A 3B 0D 1C 00 00 00 4D 00 69 00 63 00 72 00 6F 00 73 00 6F 00 66 00 74 00 2E 00 45 00 78 00 63 00 68 00 61 00 6E 00 67 00 65 00 2E 00 4D 00 61 00 6E 00 61 00 67 00 65 00 6D 00 65 00 6E 00 74 00 2E 00 64 00 6C 00 6C 00 00 00 'Verbose: Mailbox Operation: 'EcDoConnectEx', Target mailbox: '/o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=extest_f37ed75225c7498c'Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: RPC Endpoint = 'cas1.domain.com'Verbose: Microsoft.Exchange.Rpc.ServerUnavailableException: Error 0x6ba (The RPC server is unavailable) from EcDoConnectEx EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:45.755EEInfo: Generating component: 2EEInfo: Status: 0x000006BAEEInfo: Detection location: 501EEInfo: Flags: 0EEInfo: NumberOfParameters: 4EEInfo: prm[0]: Unicode string: ncacn_ip_tcpEEInfo: prm[1]: Unicode string: cas1.domain.comEEInfo: prm[2]: Long val: -1527653632 (0xA4F1DB00)EEInfo: prm[3]: Long val: 1722 (0x000006BA) EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:45.755EEInfo: Generating component: 18EEInfo: Status: 0x000006BAEEInfo: Detection location: 1442EEInfo: Flags: 0EEInfo: NumberOfParameters: 1EEInfo: prm[0]: Unicode string: cas1.domain.com EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:45.755EEInfo: Generating component: 18EEInfo: Status: 0x000006BAEEInfo: Detection location: 323EEInfo: Flags: 0EEInfo: NumberOfParameters: 0 EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:45.755EEInfo: Generating component: 18EEInfo: Status: 0x000004D5EEInfo: Detection location: 313EEInfo: Flags: 0EEInfo: NumberOfParameters: 0 EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:45.755EEInfo: Generating component: 18EEInfo: Status: 0x0000274CEEInfo: Detection location: 311EEInfo: Flags: 0EEInfo: NumberOfParameters: 3EEInfo: prm[0]: Long val: 135 (0x00000087)EEInfo: prm[1]: Pointer val: 0x0EEInfo: prm[2]: Pointer val: 0x3204100A00000000 EEInfo: ComputerName: n/aEEInfo: ProcessID: 6204EEInfo: Generation Time: 2013-05-30 13:18:45.755EEInfo: Generating component: 18EEInfo: Status: 0x0000274CEEInfo: Detection location: 318EEInfo: Flags: 0EEInfo: NumberOfParameters: 0 at ThrowRpcException(Int32 rpcStatus, String message)at Microsoft.Exchange.Rpc.RpcClientBase.ThrowRpcExceptionWithEEInfo(Int32 rpcStatus, String routineName)at Microsoft.Exchange.Rpc.ExchangeClient.ExchangeRpcClient.EcDoConnect_Wrapped(Boolean isEx, Void** pcxh, Byte* szUserDN, UInt32 ulFlags, UInt32 ulConMod, UInt32 cbLimit, UInt32 ulCpid, UInt32 ulLcidString, UInt32 ulLcidSort, UInt32 ulIcxrLink, UInt16 usFCanConvertCodePages, UInt32* pcmsPollsMax, UInt32* pcRetry, UInt32* pcmsRetryDelay, UInt16* picxr, Byte** pszDNPrefix, Byte** pszDisplayName, UInt16* rgwClientVersion, UInt16* rgwServerVersion, UInt16* rgwBestVersion, UInt32* pulTimeStamp, Byte* rgbAuxIn, UInt32 cbAuxIn, Byte* rgbAuxOut, UInt32* pcbAuxOut)at Microsoft.Exchange.Rpc.ExchangeClient.ExchangeRpcClient.EcDoConnect_Internal(Boolean isEx, IntPtr& contextHandle, String userDn, Int32 flags, Int32 sizeLimit, Int32 conMod, Int32 cpid, Int32 lcidString, Int32 lcidSort, Int32 sessionIdLink, Boolean canConvertCodePages, TimeSpan& pollsMax, Int32& retryCount, TimeSpan& retryDelay, String& dnPrefix, String& displayName, Int16[] clientVersion, Int16[]& serverVersion, Int16[]& bestVersion, Int32& timeStamp, Byte[] auxIn, Boolean compressAuxIn, Boolean xorMagicAuxIn, Byte[]& auxOut, Int32 maxSizeAuxOut, Boolean& wasCompressedAuxOut, Boolean& wasXorMagicAuxOut)at Microsoft.Exchange.Rpc.ExchangeClient.ExchangeRpcClient.EcDoConnectEx(IntPtr& contextHandle, String userDn, Int32 flags, Int32 sizeLimit, Int32 conMod, Int32 cpid, Int32 lcidString, Int32 lcidSort, Int32 sessionIdLink, Boolean canConvertCodePages, TimeSpan& pollsMax, Int32& retryCount, TimeSpan& retryDelay, String& dnPrefix, String& displayName, Int16[] clientVersion, Int16[]& serverVersion, Int16[]& bestVersion, Int32& timeStamp, Byte[] auxIn, Boolean compressAuxIn, Boolean xorMagicAuxIn, Byte[]& auxOut, Int32 maxSizeAuxOut, Boolean& wasCompressedAuxOut, Boolean& wasXorMagicAuxOut)at Microsoft.Exchange.Monitoring.MailboxTask.<>c__DisplayClassb.<Connect>b__a()at Microsoft.Exchange.Monitoring.OutlookConnectivityContext.RpcExceptionWrapper(Func`1 protectedCall)Verbose: EcDoConnectEx Result: '1722'Verbose: RPC Endpoint = 'cas1.domain.com'
Diagnostic command: "Test-OutlookConnectivity -Protocol:Tcp -TrustAnySSLCert:$true -MonitoringContext:$true"TimeWindowStart: 2013-05-30T09:13:37.0926760-04:00TimeWindowEnd: 2013-05-30T09:26:57.0926759-04:00TimeFirst: 2013-05-30T09:13:37.0926760-04:00TimeLast: 2013-05-30T09:18:45.7556913-04:00Count: 2EventSourceName: MSExchange Monitoring OutlookConnectivity Enterprise End To End Knowledge: http://go.microsoft.com/fwlink/?LinkID=67336&id=4F129C11-AFBF-4093-A4DE-C1081FB53E07 Computer: CO-CASHUB-01.domain.com Impacted Entities (3):Outlook Service - CORP, Company - domain.com, Exchange Ron TaylorSystems Engineer
