I have a SX80 being controlled by a Crestron DMPS 300. When you share content fro a pc through the Crestron unit it will work, but after about 15 minutes it will fail. Or if the pc goes to sleep or lock screen you will lose the ability to see the content.
If it's the DMPS, try connecting it directly to the SX80 and see what happens. You'll also want to check your program, perhaps it's turning off the presentation content after a period of time for some reason.
Something to note is that if the presentation source is disconnected or goes into standby, after 10 seconds, the presentation will stop sending.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...