Chris wrote:
Hey homelander -- you didn't break anything, this is a pretty common one on a brand new setup. Quick question to narrow it down: what are you trying to play it on -- a phone, a smart TV app, or a browser on a computer? As a first test, open your SparkBox box's address directly in a browser at http://<your-box-ip:8096, log into Jellyfin there, and try playing the same file. If it plays fine there but not on your other device, it's that device/app, not the server -- let us know what you find and we'll go from there.