I see you are trying to get a hold of customer support for your Pro HD. Unfortunately this product is an End Of Life product which we no longer support. For the Pro HD among other EOL products we do offer troubleshooting links as well as setup videos you can find on YouTube.
For any other supported Slingbox ( which are the Slingbox 500, M1, M2, or 350) you can give us a call at 1-888-467-5464. Our times of operation are from 9am to 9pm CT Monday-Sunday.
I will attach some links to help you setup your Pro HD.
- Download Slingplayer for Desktop Application for PC/MAC
- Slingplayer for Desktop interface tour
- Pro HD Setup Video
Sling Media Moderation Team