I can not change channel remote control is one program that works, the only button that works is the mute button for the audio.
Sincerely Owe Modigh firstname.lastname@example.org
I assume you have already done a proper Forum Search for your model number in case other people have already answered your question ?
If so and that didn't help then check out this thread: https://community.sling.com/thread/3300?tstart=0
Come back if it that doesn't help either.