Chromecast not working with JF

[FMMc]

I installed Jellyfin so I can cast to my TV via Chromecast (Gen 2) but it will not cast. It shows that it is connecting to Chromecast but media will not play.
Chromecast worked on Plex until Plex lost connection to my server which is my PC. So I uninstalled Plex and installed Jellyfin.
Jellyfin build is 10.9.9. PC is on Windows 11.
Does Chromecast work on Jellyfin? I did see something about blocking 8888 in the router. Is this necessary?
Thanks.

[34626]

What if you use the browser Google Chrome, is that then able to cast to the Chromecast?
Please also share your jellyfin logs with pastebin when you try to use the cast function.

[FMMc]

I am using the Chrome browser. Is there a guide how to post the logs?

[rygle]

Are you casting from the Chrome browser on a desktop or laptop? The mobile version doesn't have Chromecast built in to the browser.

I have managed to cast from a Chrome browser on a laptop.

Another test would be to try to cast anything else apart from Jellyfin via the browser. You should be able to cast content from any tab.

[34626]

Okay, go to: https://pastebin.com/

Create a free account, make a pastebin and post the link in here

Does the Chromecast work with other apps?

[FMMc]

I'm using Jellyfin on a desktop PC. Chromecast works on everything else (Plex, VLC, etc). I can cast the screen or tab in Chrome browser.
But when I start Jellyfin and activate the Chromecast, the TV screen shows the Jellyfin logo and 'Ready to Cast' but any video will not play.
Here is my Log File after attempting to play one video:
https://pastebin.com/sxXYvCdf

[34626]

Please try and play a movie in your browser and share the logs of that..

[FMMc]

Jellyfin was run in Browser window. Runs properly.
See log file here:
Log File

[TheDreadPirate]

I see you are accessing Jellyfin with "localhost" on the same machine running Jellyfin. Did you allow Jellyfin through the Windows Firewall? Accessing Jellyfin with "localhost" would circumvent any firewall issues.

[FMMc]

Jellyfin server is allowed Inbound UDP and TCP in the Windows Firewall. No outbound. Do I need outbound?