[URL]  Found this kb and it solved my issue. LDAP group name is case sensitive.  But, still it should have just shown as failed role mapping instead of successful.  Anyhow, it is working now.
Hi all, We have Unity 600F. We are successfully able to configure LDAP and added AD group of users with administrator role. Worked great, until now. Now when users from the group try to login they get following message: Unity says: The logged in user is not authorized to access unisphere. And in unity logs it does say that authentication is successful. Then I added that user separately as an LDAP user without group and then he was able to login without any errors. Anyone knows what might be the cause?
Unity LDAP group problems