Apple TV 4k

Getting “an error occurred while loading this content” on all playable videos residing on my network. Apple TV on same network, directly wired by either net . All videos play fine on MAC. Infuse used to work. Running 10.13.6 High Sierra on MacBookPro Retina 13” early 2016. Help please.

Have you seen this tacked thread? tvOS 12 beta: An error occurred loading this content (update: fixed in 12.0 b10)

If this isn’t the issue, what network protocol are you using? DLNA, FTP, SMP?