You certainly had the right idea resetting that Slingbox since it's most likely a used one. First, you'll want to be certain that you've not only pressed the reset button, but reset the box completely to its out-of-the-box state:
Next, you'll want to be certain there are no firewalls blocking access to your Slingbox and that your laptop and Slingbox are on the same network. Setup ought to be initiated automatically when you click Watch at the top of this screen, no Slingbox ID required.
Hope this helps!
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