AD import gets an error when retrieving the list of OU's (under Select Organizational Unit (OU) GUI) for the specified domain in the AD Import Rule.
"An error occurred initializing the OU picker: An error occurred getting the root DN for 'domain.com': An error occurred determining the DN of the root of the domain or server 'domain.com'' ---> A local error has occurred.'

Error:
Unable to retrieve defaultNamingContext for:
LDAP://west.org/rootDSE
A local error has occurred.
[System.DirectoryServices.DirectoryServicesCOMException @
System.DirectoryServices]
at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.PropertyValueCollection.PopulateList()
at System.DirectoryServices.PropertyValueCollection..ctor(DirectoryEntry
entry, String propertyName)
at System.DirectoryServices.PropertyCollection.get_Item(String
propertyName)
at
Altiris.DirectoryServices.DirectoryExport.LDAPUtility.GetDefaultNamingContex
t(String strServer, String strUserId, String strPassword)
COM Exception errcode: 0x8007203B
Exception logged from:
at Altiris.Diagnostics.Logging.EventLog.ReportException(Int32 severity,
String strMessage, String category, Exception exception, String footer)
at Altiris.NS.Logging.EventLog.ReportException(Int32 severity, String
strMessage, String category, Exception exception)
at
Altiris.DirectoryServices.DirectoryExport.LDAPUtility.GetDefaultNamingContex
t(String strServer, String strUserId, String strPassword)
at
Altiris.DirectoryServices.UI.Controls.OuPickerCtrlWebService.GetRootDN(Strin
g serverOrDomain, String userName, String password)
at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[]
arguments, SignatureStruct& sig, MethodAttributes methodAttributes,
RuntimeTypeHandle typeOwner)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags
invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean
skipVisibilityChecks)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags
invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Web.Services.Protocols.LogicalMethodInfo.Invoke(Object target,
Object[] values)
at System.Web.Services.Protocols.WebServiceHandler.Invoke()
at System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest()
at
System.Web.Services.Protocols.SyncSessionlessHandler.ProcessRequest(HttpCont
ext context)
at
System.Web.Script.Services.ScriptHandlerFactory.HandlerWrapper.ProcessReques
t(HttpContext context)
at
System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplicati
on.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
completedSynchronously)
at
System.Web.HttpApplication.ApplicationStepManager.ResumeSteps(Exception
error)
at
System.Web.HttpApplication.System.Web.IHttpAsyncHandler.BeginProcessRequest(
HttpContext context, AsyncCallback cb, Object extraData)
at System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr)
at System.Web.HttpRuntime.ProcessRequestNoDemand(HttpWorkerRequest wr)
at System.Web.Hosting.ISAPIRuntime.ProcessRequest(IntPtr ecb, Int32
iWRType)
----------------------------------------------------------------------------
Date: 7/10/2015 7:00:28 PM, Tick Count: 1684560875 (19.11:56:00.8750000), Size: 3.43 KB
Process: w3wp (10668), Thread ID: 3, Module: w3wp.exe
Priority: 1, Source:
Altiris.DirectoryServices.DirectoryExport.LDAPUtility.GetDefaultNamingContext