We have a ePO superAgent serving as repository to another ePO deployment across Firewall. The repository was shared and permissions were in place to access it from the ePO server. When we added the repository as source for the ePO it did validate the credentials , however the ePO Wizard failed to list the content of the repositiry in the console. In order to get this working , we needed to create a new share on the SuperAgent instead of utilizing the SuperAgnet repository Then the ePO server configuration was modified to include the new share and everything worked fine after that. Hope this helps/