Hello firstname.lastname@example.org. This is a great question! A Slingbox will occasionally go through firmware updates to make sure they are compatible with the most up to date software out there. Sometimes these updates can cause an older Slingbox to become incompatible with older versions that are no longer supported. Here's an article that goes over some of the system requirements for the most current software. What browsers and systems are supported by Watch on Slingbox.com?
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Sling Media Moderation Team