I see you are having issues streaming using your Chromebook. Windows OS did come out with a new update, in fact there were 2 updates recently made. If this update has not been performed on your device of choice it will cause issues when streaming any Slingbox. Please Make sure to check for any Windows updates on your Chromebook to eliminate this from being the reason for the issue. As far as the Facebook App is concerned we no longer support it, which means you will no longer be able to share what you are streaming or access Facebook with your Slingbox. If you are having issues streaming through a browser using the website (newwatch.slingbox.com) after making sure you do have the appropriate Windows OS update on your device, try to uninstall and re-install the Slingplayer for web plug-in. No other changes have been made in regards to any Slingbox model.
I will post a link below further explaining the Slingplayer for web plug-in removal and installation process.
Sling Media Support
Has something changed with the Facebook app & chromebooks? I still can get my slingbox on my desktop, but my chromebook just returns a message that an error was encountered. When I click "try again", the message comes back with an image of a bandaged thumb.