I have the HD Pro Slingbox. From its remote location I am getting the message :"Your TV or its cables are not HD support Press and hold the exit key to set for standrd TV"
This forces me to set my DirectTv box to 480 instead of 1080. Since this problem just started, my question is what changed internally. I have had this Slingbox for over 2 years and have made not changes to itm cables or otherwise. There has never been a problem. What changed and how do I fix it so I can watch HD TV again?
You obviously didn't do a Forum Search before you posted this question, as there are dozens of threads about it. What has happened is that DirecTV have remotely updated the firmware of your receiver to implement HDCP (Wikepedia it), which prevents you having more than one HD output. Nothing to do with Sling.