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.
ive done a search however don't know if it was a proper serach or not....it is very confusing........ i have followed what you reccommended here to the T and still nothing.....i get to the page where it says, this is your remote, try it out, however there is no remote there.......
It seems very strange that this remote worked perfectly for just over a year, then yesterday while i was watching TV downstairs thru my slinbox, the remote just all of a sudden disappears, goes away & i have reset, restarted, checked my pop-up controls, reconfiquerd, turned off my firewall & nothing has helped........i can turn on my cable box manually upstairs & everything except for the remote works downstairs....................very time consuming & frustrating.