While you are waiting for a reply from Sling 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/message/10363#10363
If that doesn't help either then post a request in the main Discussion area (NOT HERE, as this area is ONLY for official 'Remote Control Requests' to Sling Media, not for general users) and I will see if I can help in the short term.
Thanks. It's strange. I tried to register on
placeshiftingenthusiasts.com to download some remote controls, and never
received my registration code. Now when I try to register, I get a
white screen that says it is blocked because hackers tried to access it,
and I can't access the site until the block is removed. Bummer. Can't
figure out any way to get around it.
Not sure why you didn't receive the registration email.
The white screen you saw was because hack bots were overwhelming the site trying to register. When that happens the site temporarily stops access (10-15mins) so they go away.
If you go to the contact form Contact Us – Place Shifting Enthusiasts and send me your registration name & email I will look into the problem.