FBA Not granting access to AD group users

Question

In my FBA setting, individual user can be granted access to sharepoint site and works fine. It is able to resolve AD group but any user within that AD group is not able to get access to the sharepoint site. Same user when added directly gets access. Since
these AD groups have more than 2000 users it is not possible to add them individually. Is there anyway of doing it? 
i followed this approach but it did not work.
http://social.technet.microsoft.com/Forums/office/en-US/9592df6b-d789-49c0-b1ec-142828cdadc8/fba-ldap-domain-group-members-getting-access-denied?forum=sharepointadminlegacy
sachin

Answer 1

Ok complete answer is in the link http://social.technet.microsoft.com/Forums/office/en-US/9592df6b-d789-49c0-b1ec-142828cdadc8/fba-ldap-domain-group-members-getting-access-denied?forum=sharepointadminlegacy.
I did not do something right in the first time .
After editing role provider and adding the italic lines: 
<add name="AccountRole"
                  type="Microsoft.Office.Server.Security.LdapRoleProvider,
Microsoft.Office.Server, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"
                  server="server"
                  port="389"
                  useSSL="false"
                  enableSearchMethods="true" 
                  groupContainer="DC=$$,DC=@@,DC=!!"
                  groupNameAttribute="cn"
                  groupNameAlternateSearchAttribute="cn"
                  groupMemberAttribute="member"
                  userNameAttribute="sAMAccountName"
                  dnAttribute="distinguishedName"
                  useUserDNAttribute="true"
                  connectionUsername="username" 
                  connectionPassword="password"
                  userFilter="&amp;(objectClass=user)(objectCategory=person)"
                  groupFilter="&amp;(objectCategory=Group)(objectClass=group)"
                  userContainer="DC=$$,DC=@@,DC=!!"
                    scope="Subtree"
/>
Then following these steps:
If
you add the group in the site, you must make sure it was retrieved from the Role provided (LdapRoleProvider in your issue), but not the membership provider (LDAP in your issue)
Things
have started working now.
sachin