G: Give me exactly what you typed and exactly what it printed, and I’ll tell you what’s going on.

TL;DR (grade-1 JP example):
地元（じもと）IP を見（み）つける — find your local IP.
たとえば: ip a — “IP addresses.”

Two common ways on Fedora/Linux:

1. Simple, reliable:

hostname -I

→ Prints your LAN IPv4, usually something like 192.168.x.x or 10.0.x.x.

2. Detailed:

ip addr show

→ Look under your active interface (likely wlan0, wlp3s0, enp…); the line with inet 192.168.x.x/24 is your local IP.

Paste your actual command/output and I’ll tell you exactly what the correct address is.

M: (base) [david@fedora ~]$ ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host noprefixroute valid_lft forever preferred_lft forever 2: enp0s31f6: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000 link/ether e8:6a:64:7d:8f:44 brd ff:ff:ff:ff:ff:ff altname enxe86a647d8f44 3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 62:c0:9f:bf:9a:97 brd ff:ff:ff:ff:ff:ff permaddr fc:77:74:ad:0b:d8 altname wlxfc7774ad0bd8 inet 10.0.0.28/24 brd 10.0.0.255 scope global dynamic noprefixroute wlp2s0 valid_lft 86318sec preferred_lft 86318sec inet6 fd35:21e0:1680:aef9:5a2a:abec:6b04:e0b3/64 scope global dynamic noprefixroute valid_lft 1724sec preferred_lft 1724sec inet6 fe80::21c9:dbdc:208c:166f/64 scope link noprefixroute valid_lft forever preferred_lft forever 4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default link/ether 3e:1d:59:2b:ae:3e brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0 valid_lft forever preferred_lft forever

G: Your Jellyfin-usable local IP is:

10.0.0.28

That’s the IPv4 assigned to your active Wi-Fi interface wlp2s0:

inet 10.0.0.28/24 scope global dynamic wlp2s0

So on the same LAN, your browser should open Jellyfin at:

http://10.0.0.28:8096

(or https://10.0.0.28:8920 if you've configured HTTPS).

Japanese inline (grade-1 level): 家（いえ）ネット IP は 10.0.0.28 — your home-network IP is 10.0.0.28.

If Jellyfin isn’t reachable, the next steps are firewall or service-status checks, but the address itself is correct.