This sounds like it would be HDCP, which is High-bandwidth Digital Copyright Protection. Any content streaming over HDMI can be effected by this protection.
These articles below can further explain how this effects the Slingbox and a few things to try to resolve the issue:
- When I connect my set-top box to my TV with HDMI connections, I can't stream video at all using any version of SlingPlayer. Why?
- Using an HDMI video source with the Slingbox 500
- How audio and video passthrough works on your Slingbox
Sling Media Moderation Team
I'd like to bump this thread, as I have the same issue. Pretty vanilla setup of Channel Master DVR+ and SlingBox 500.
In SlingPlayer, whether it's Live TV or recorded on the DVR, the video/audio plays for about a half second, then disappears.
I was thinking it could be a bandwidth issue, but I have 15 Mbps download and 1 Mbps upload, which I've tested and it seems accurate.
From what I'm able to tell, HDCP shouldn't be part of this discussion since it's all over-the-air broadcasts.
Thanks in advance for any advice.
I can appreciate the frustration with dealing with this situation. I did look at the back panel of the CM DVR+ and see that it only has options for coaxial and HDMI outputs. It is still possible this could be an version of copyright protection via HDCP as it is still relying on HDMI. I will follow back up with any further suggestions from our technical division. Thank you for your paitence.
The Sling Moderation Team