Jellyfin crashes during playback with no evidence in logs

[hugefinfan]

Ah, spoke too soon. This just crashed on chrome again:

Chrome console log:

Code:

HLS Error: Type: networkError Details: fragLoadError Fatal: false main.jellyfin.bundle.js:2:69163
hls.js response error code: 502 main.jellyfin.bundle.js:2:69369
Requesting url without automatic networking: https://sub.domain.tld/Sessions/Playing/Progress node_modules.jellyfin-apiclient.bundle.js:2:14622
Requesting url without automatic networking: https://sub.domain.tld/Sessions/Playing/Progress

[TheDreadPirate]

Is your router or something just going bad? Bad cable? Dropped packets?

[hugefinfan]

No. I have everything hardwired and a full ubiquity pro stack setup in a rackmount setup.

Interestingly, back on version 9 of JF I used to be able to reboot the docker container and the video cache would allow it to keep playing through the (20 seconds or so) reboot. Now when I just tested that today the Roku keeps playing through the cache but on the browser it crashes immediately. Is the cache not client-side when watching in the browser?

I find this strange because if even the slightest network jitter caused JF to crash wouldn't everyone have this problem all the time making web playing essentially unusable? Incredibly I frequently stream jellyfin on airplanes! Talk about a tenuous network connection of dropped packets....

[TheDreadPirate]

Are you using custom MTU sizes? Jumbo frames? Separate VLANs for clients and server? Special routing rules?

[Fate]

Are you using custom MTU sizes?  Jumbo frames?  Separate VLANs for clients and server?  Special routing rules?

Adding to what TDP said:
duplicate IP Addresses? asymmetric routing?

@OP
can you create a network capture with wireshark and recreate the crash?