I'm not using solo, presuming the setup assistant should be functioning the same way; in order to view video from internet, slingbox require its port 5001 to be forwarded from the router. Meaning using router port mapping / forwarding to direct traffic arriving at router's internet port 5001 to slingbox device's port 5001 in home or local network. This senario assuming your slingbox is connected to your home network (router's local home network) and viewing properly locally using SlingPlayer (desktop version).
It seems that you are having some issues in order to set up your Slingbox for Internet Viewing with the Linksys E1000 router.
The following third-party link will allow you to get the step-by-step instructions in order to set up your Slingbox for Internet Viewing.
Make sure to check this link and follow the included instructions.