What ports need to be open for Slingbox?

The Slingbox uses port 5001 when it communicates with your router, so this port needs to be open for your Slingbox to send video outside of your network.

How do I set up Slingbox Pro HD?

NG NETWORK 1 Connect the power adapter to the Slingbox POWER jack. 2 Plug the power adapter into an electrical outlet. 3 The power light illuminates, and the network light starts blinking. Wait a moment until both lights turn solid red, and the Slingbox is ready for use.