A17 error?

Channels DVR Server
#1

I was watching remotely tonight on my FS and all of a sudden everything froze so I backed out to my recording list and selected the content I was watching and all I got was an error A17 screen. Same happened on other recordings and live TV.

Not sure what happened, but rebooted the FS and when I came back later everything seemed fine. weird. What is A17?

#2

What is FS? Details are important to give accurate answers. What hardware are you using? Which software versions? What do the logs say?

#3

Fire Stick. Log shows no unusual activity, recordings firing as they should.