How to configure SSRS to work with LDAP?
If the server is in the same domain it inherently has what it needs from the same domain.
Is there something different in your situation and what exact setup do you have that has prompted you to ask this question
Actually the SSRS server is in workgroup and server which has active directory configuration is in domain.
Why do you have ssrs on a server that is not joined to the domain? Anyways it is not a sql issue more of networking issue