I have Google Fiber and have not been able to get the on-screen Google Fiber remote to work. Everything loads just fine, I am able to see the on-screen Google Fiber remote, but when you click a button nothing happens. I have plugged in the IR blaster and have it pointing to the TV Box but it does not function. Do you have any additional instructions on getting the Slingbox provided on-screen remote to work?
Google Fiber is support with the slingbox. If you are having problems using your remote, I would take a look at this aticle listed below.
Sling Media Moderation Team