Thank-you for contacting Slingbox Forum.
This is a very good question! We will need to have more information to be able to answer it. Where are you viewing the Slingbox? What type of computer and browser are being used? Any information you give us may help us better assist you.
Here is some information that may assist you. Using the SlingPlayer with a VPN Connection on your Windows computer.
Hope this helps with your issue.
Sling Moderation Team