You only need to remove the surge protector, since we do not recommend to use them. Then, the second SlingLink must be connected on the Slingbox ethernet port. This way, both SlingLinks will communicate to each other.
Finally, keep in mind that the Slingbox will allow only one connection at the time. This means that you will need to purchase the Mobile application for every Mobile device you own. The following link will provide you with all the information in order to know how the SlingLinks work.