Hi Som,
I get two more VMs for the DT client.
Please refer to the wiki info (attached below)for the DT client vs. VM assignment and install the proper client from the following links. So tester on different server will not affect each other.
Hi New,
I have attached the login screen shot also into our wiki page, basically no hot/domain part is needed when logging from a Same time DT client. And the DT client actually does not go through BES, no BCS is not related.