What I understand from your post, is that you can't connect to your Slingbox.
In this case, what I would recommend to you, is to provide more information about the problem that you're having. For example, you can provide information about error messages, network layout, Slingbox network light status, etc.
That way, you will be able to receive a proper response from the forum users.
Jose: That ship has sailed. The router continued to drop connectivity, so I replaced it. I also replaced the Slinbox at the same time. One thing I didn't try, but I should have, was a factory reset on the Slingbox. Going back to square one might have helped, but I didn't think of it at the time. Anyway...all good now!
Thanks for your response.