Server -> Modem/Router -> Switch -> Netgear Wireless Router -> Wireless Device

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Oh god I would guess this is a networking issue. Check the IP address of your LG TV. Now check the IP address of your Android device. What are they? Do the subnets match? Do they look similar? Does your Android device have a self-assigned or DHCP-assigned IP address?

The problem here is obviously the AP. This is probably a) not the right forum for this question and b) probably not the right support channel at all to ask a networking question, as the point of failure is clearly not Jellyfin. If this gets moved to off-topic, you might get some assistance, but I'd recommend looking for some help from a networking-focused forum or subreddit. Home networking is a nightmare...