Can't get it working on Shield

I installed jellyfin yesterday on my qnap in docker. It works great in my browser. But I can’t get it running on the Shield. When I installed emby it was able to find the server but it won’t for jellyfin. When I try to manually enter the IP address it let’s me type it all out but then doesn’t accept the input and then I have to go through it all again, with the same result. Please help!

Are you able to access it from a mobile device on your network? Like if you type in the IP address and port into the browser on your phone?