Active directory module configuration with sitecore

I am trying to configure active directory module for sitecore.

I installed the package for AD module and verified the various files that gets included in the sitecore.

I did the below configuration to strat with

    1.  Connection string
    <add name="ADConnString" connectionString="LDAP://ldapserver.corp.pk.com:389,DC=corp,DC=pk,DC=com" />

    2.  Membership provider

    <membership defaultProvider="sitecore" hashAlgorithmType="SHA1">
          <providers>
            <clear />
            <add name="sitecore" type="Sitecore.Security.SitecoreMembershipProvider, Sitecore.Kernel" realProviderName="switcher" providerWildcard="%" raiseEvents="true" />
            <add name="sql" type="System.Web.Security.SqlMembershipProvider" connectionStringName="core" applicationName="sitecore" minRequiredPasswordLength="1" minRequiredNonalphanumericCharacters="0" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="256" />
            <add name="switcher" type="Sitecore.Security.SwitchingMembershipProvider, Sitecore.Kernel" applicationName="sitecore" mappings="switchingProviders/membership" />
            <add name="ad" type="LightLDAP.SitecoreADMembershipProvider" connectionStringName="ADConnString" applicationName="sitecore" minRequiredPasswordLength="1" minRequiredNonalphanumericCharacters="0" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" connectionUsername="****" connectionPassword="****" connectionProtection="Secure" attributeMapUsername="sAMAccountName" enableSearchMethods="true" customfilter="(memberOf=CN=SitecoreUsers,OU=Groups,DC=corp,DC=pk,DC=com)" />
          </providers>
        </membership>

    3. Role provider
            <roleManager defaultProvider="sitecore" enabled="true">
              <providers>
                <clear />
                <add name="sitecore" type="Sitecore.Security.SitecoreRoleProvider, Sitecore.Kernel" realProviderName="switcher" raiseEvents="true" />
                <add name="sql" type="System.Web.Security.SqlRoleProvider" connectionStringName="core" applicationName="sitecore" />
                <add name="switcher" type="Sitecore.Security.SwitchingRoleProvider, Sitecore.Kernel" applicationName="sitecore" mappings="switchingProviders/roleManager" />
                <add name="ad" type="LightLDAP.SitecoreADRoleProvider" connectionStringName="ADConnString" applicationName="sitecore" username="ldapuser" password=" ldappw" attributeMapUsername="sAMAccountName" cacheSize="2MB" />
              </providers>
            </roleManager>
4. Added domain in App_config/Security/Domains.config
<domain name="ad" ensureAnonymousUser="false" />

5. Added swtiching providers for membership and role providers

<switchingProviders>
      <membership>
        <provider providerName="sql" storeFullNames="true" wildcard="%" domains="*" />
       <provider providerName="ad" storeFullNames="false" wildcard="*" domains="ad" />
      </membership>
      <roleManager>
        <provider providerName="sql" storeFullNames="true" wildcard="%" domains="*" ignoredUserDomains="" allowedUserDomains="" />
       <provider providerName="ad" storeFullNames="false" wildcard="*" domains="ad" />
      </roleManager>
    </switchingProviders>

I did browse to ProvidersStatus page and i see active directory module being correctly setup with sitecore

When i browse to sitecore Desktop -> security tools -> user manager.. i dont see the users in the list but on the domains section i see the new domain 'ad'

When i look at the log.. i see the below error

ERROR Active Directory existing checking exception: System.DirectoryServices.DirectoryServicesCOMException (0x8007052E): The user name or password is incorrect.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.get_NativeObject()
   at LightLDAP.MembershipResolver.DirectoryEntryExists(String path, String username, String password, AuthenticationTypes types)
 ERROR The AD membership provider couldn't be initialized: The user name or password is incorrect.

Exception: System.DirectoryServices.DirectoryServicesCOMException
Message: The user name or password is incorrect.

I verified the username and password to connect to Active directory server and they seem to be correct.. i have no clue why i am not able to see the users at all :(

Any help is appreciated. Thanks.

Make sure you provide a domain name for your user account in your membership.providers entry i.e. connectionUsername="domain\username" I ran into this exact problem recently; even though I could browse the LDAP tree in an external browser (Softerra's) without specifying a domain, Sitecore would not connect unless a domain was specified.

And if you are like I was, you don't know the "domain" name - as it's now an LDAP tree. Try building the domain name using the root values in your connection string. For me it was the top two DC's: connection string:

<add name="ad" connectionString="LDAP://mycompany.gbl:389/OU=Users,DC=mycompany,DC=gbl"/>

translated to:

connectionUsername="mycompany.gbl\myconnectaccount"