apple tv 4k- ethernet line, itunes libray not detected.

I recently convert from wi-fi on my Apple TV 4k to an Ethernet line. All the functionality on Apple TV works except for seeing my itunes library.

Her is my set up.

My internet line in my den come in to netgear router 1. Those Ethernet cables go out to:

1. PC #1 (where Itunes resides)
2. PC #2
3. cat 6 cable running into Net gear Router # 2 in my living room.

From there NetGear router #2 goes into my Appte TV.

I’m thinking it has something to do with the two different routers. Any suggestions or help is appreciated.