Chromecast Ultra (on Ethernet) crashes

[embyben 6]

I'm running Emby Server Premium in a FreeNAS jail. My iPad clients play everything fine all the time.

But i do have an issue with my Chrome Cast Ultra. It randomly stops playing movies. Quite often i can press play and it continues. The Chromecast is using Ethernet and so is the FreeNAS server. 

The last 2 ffmpeg logs (one cashed) are attached. 

It's getting annoying now. Please advise. 

ffmpeg-remux-681cd82a-0bd2-4b15-9e88-7e5c8767bdec_1.txt ffmpeg-remux-d2f13dca-cfed-4ae4-9fa8-d0e557224a12_1.txt

[Luke 40120]

Hi, how did you install emby server?