I continue to get this error when I run loadgen.

This is a 3 server DAG (CAS/MBX roles on all 3 of them)

Using LoadGen to build some loads. Started with few mailboxes. Even with 10 of them it fails.

Error message is as follows:

Engine.General Warning: 0 : 02/03/2015 03:30:13 -- Caught a non-fatal exception in executeTaskStub. The exception was handled by the task module: Microsoft.Mapi.MapiExceptionNetworkError: MapiExceptionNetworkError: Unable to make connection to the server. (hr=0x80004005, ec=2423)
Diagnostic context:
    Lid: 49064   dwParam: 0x3
    Lid: 59431   EMSMDB.EcDoConnectEx called [length=151]
    Lid: 51239   EMSMDB.EcDoConnectEx exception [rpc_status=0x6BA][latency=21000]
    Lid: 62184  
    Lid: 16280   dwParam: 0x0 Msg: EEInfo: ComputerName: n/a
    Lid: 8600    dwParam: 0x0 Msg: EEInfo: ProcessID: 11076
    Lid: 12696   dwParam: 0x0 Msg: EEInfo: Generation Time: 0415-02-03T11:30:13.0470000Z
    Lid: 10648   dwParam: 0x0 Msg: EEInfo: Generating component: 13
    Lid: 14744   dwParam: 0x0 Msg: EEInfo: Status: 1722
    Lid: 9624    dwParam: 0x0 Msg: EEInfo: Detection location: 1352
    Lid: 13720   dwParam: 0x0 Msg: EEInfo: Flags: 0
    Lid: 11672   dwParam: 0x0 Msg: EEInfo: NumberOfParameters: 1
    Lid: 12952   dwParam: 0x0 Msg: EEInfo: prm[0]: Long val: 3221360650
    Lid: 62184  
    Lid: 16280   dwParam: 0x0 Msg: EEInfo: ComputerName: n/a
    Lid: 8600    dwParam: 0x0 Msg: EEInfo: ProcessID: 11076
    Lid: 12696   dwParam: 0x0 Msg: EEInfo: Generation Time: 0415-02-03T11:30:13.0470000Z
    Lid: 10648   dwParam: 0x0 Msg: EEInfo: Generating component: 14
    Lid: 14744   dwParam: 0x0 Msg: EEInfo: Status: -1073606646
    Lid: 9624    dwParam: 0x0 Msg: EEInfo: Detection location: 1380
    Lid: 13720   dwParam: 0x0 Msg: EEInfo: Flags: 0
    Lid: 11672   dwParam: 0x0 Msg: EEInfo: NumberOfParameters: 2
    Lid: 12952   dwParam: 0x0 Msg: EEInfo: prm[0]: Long val: 12002
    Lid: 8856    dwParam: 0x0 Msg: EEInfo: prm[1]: Unicode  string: /rpc/rpcproxy.dll?e04d12a1-1ad8-4ade-bf08-c828e1c20e96@MCBP.NET:6001
    Lid: 59505   StoreEc: 0x977     
    Lid: 50544   ClientVersion: 15.0.805.0
    Lid: 52080   StoreEc: 0x977     
    Lid: 51152  
    Lid: 52465   StoreEc: 0x977     
    Lid: 60065  
    Lid: 33777   StoreEc: 0x977     
    Lid: 59805  
    Lid: 52487   StoreEc: 0x977     
    Lid: 19778  
    Lid: 27970   StoreEc: 0x977     
    Lid: 17730  
    Lid: 25922   StoreEc: 0x977     
   at Microsoft.Mapi.MapiExceptionHelper.InternalThrowIfErrorOrWarning(String message, Int32 hresult, Boolean allowWarnings, Int32 ec, DiagnosticContext diagCtx, Exception innerException)
   at Microsoft.Mapi.MapiExceptionHelper.ThrowIfError(String message, Int32 hresult, IExInterface iUnknown, Exception innerException)
   at Microsoft.Mapi.ExRpcConnectionFactory.Create(ExRpcConnectionInfo connectionInfo)
   at Microsoft.Mapi.MapiStore.OpenMapiStore(String serverDn, String userDn, String mailboxDn, Guid guidMailbox, Guid guidMdb, String userName, String domainName, String password, String httpProxyServerName, ConnectFlag connectFlags, OpenStoreFlag storeFlags, CultureInfo cultureInfo, Boolean wantRedirect, String& correctServerDN, ClientIdentityInfo clientIdentity, String applicationId, Client xropClient, Boolean wantWebServices, Byte[] clientSessionInfo, TimeSpan connectionTimeout, TimeSpan callTimeout, Byte[] tenantHint)
   at Microsoft.Mapi.MapiStore.OpenMailbox(String serverDn, String userDn, String mailboxDn, String userName, String domainName, String password, String httpProxyServerName, ConnectFlag connectFlags, OpenStoreFlag storeFlags, CultureInfo cultureInfo, WindowsIdentity windowsIdentity, String applicationId)
   at Microsoft.Exchange.Swordfish.Extensions.MapiCommon.MapiStoreUtil.<>c__DisplayClass2.<OpenMailbox>b__0()
   at Microsoft.Exchange.Swordfish.IL.ILUtil.DoTryFilterCatch(ThreadStart tryClause, Predicate`1 filterClause, Action`1 catchClause)
   at Microsoft.Exchange.Swordfish.Extensions.MapiCommon.MapiStoreUtil.OpenMailbox(User user, ConnectFlag connectFlags, OpenStoreFlag openStoreFlags)
   at Microsoft.Exchange.Swordfish.Extensions.StoreBuilder.Builder.EnsureMailboxStore(User user)
   at Microsoft.Exchange.Swordfish.Extensions.StoreBuilder.Builder.BuildInboxRules(User user)
   at Microsoft.Exchange.Swordfish.Extensions.StoreBuilder.Builder.BuildMailboxStore(User user)

Any suggestions?

Note:

I am able to send an receive emails through OWA and Outlook client fine.

• Edited by kayvwar Tuesday, February 03, 2015 11:39 AM

Hi,

Please check if there is any anti-virus on your Exchange server, if there is, please disable it temporarily to check result.

And make sure the network card on Exchange server is configured properly.

Best regards,

There isnt any anti-virus installed. Firewall has been turned off.

I have disabled firewall. No antivirus installed.