How to use active directory connection string membership provider when it is published outside our domain or on azure

See more:

C#

ASP.NET

membership

, +

we develope web application using asp.net webforms and active directory membership provider ,it work fine on local or on any server has our domain but when I published it on azure not work and return that message "Unable to establish secure connection with the server" my code on web config

<add name="ADConnectionString" connectionString="LDAP://HO-DCRW-V04.test.gov/DC=test,DC=gov"/>



    <membership defaultProvider="DefaultMembershipProvider">
      <providers>
<add name="DefaultMembershipProvider" type="System.Web.Security.ActiveDirectoryMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" attributeMapUsername="sAMAccountName" connectionStringName="ADConnectionString" connectionUsername="test\mynameaccount" connectionPassword="mypassword"/>
   </providers>
    </membership>

    <roleManager enabled="true" defaultProvider="ActiveDirectoryRoleProvider" cacheRolesInCookie="true" cookieName=".ASPXROLES" cookiePath="/" cookieTimeout="30" cookieRequireSSL="false" cookieSlidingExpiration="true" createPersistentCookie="false" cookieProtection="All">
      <providers>
<add name="ActiveDirectoryRoleProvider" connectionStringName="ADConnectionString" connectionUsername="adminuser" connectionPassword="adminpassword" attributeMapUsername="sAMAccountName" type="mysystemname.ActiveDirectoryRoleProvider"/>
  </providers>
    </roleManager>

how to solve it ?

What I have tried:

it work fine on local or on any server has our domain but when I published it on azure not work and return that message "Unable to establish secure connection with the server"