In the DAS settings Tab, maintain the settings required to access the Data Access Studio ReportsNow server transparently.

TL DAS Settings
Enter the portnumber of the Data Access Studio Server.
Enter the fully qualified hostname or IP-address of the Data Access Studio server.
Choose the protocol to be used when communicating with your Data Access Studio, http or https.
Enter the name of the Environment served by this TL Instance.
Enable this setting to access DAS using the All role.