Apple TV Home Sharing not working (Windows 10, iTunes 12.4.1.6)

I have finally solved this issue for myself. I've had the apple tv-windows 10-itunes problem since at least summer '16. I tried all the fixes I've seen here and other forums, but none of them worked. This is what I did:

1. Turned ipv6 back on -- either way it didn't make a difference. But for the following I left it on

2. Renamed my home network by going into the router settings. A pain in the butt, yes. Although my laptop was connecting to 'network' it was showing it was connected to 'network 2' since I had changed routers and used the same name. I believe the airplay issue existed before the new router

3. I did not change my ports like so many forum threads suggest. I'm using Avast, for the record

4. Connected Amazon Echo to the guest network in case there was an issue with the Echo broadcasting a signal

I've had this problem twice, the most recent because I've gotten a new PC. Both times the correction involved turning off IPv6 on the PC. This is the best synopsis I've found on the web describing how to do this:

https://www.technipages.com/itunes-home-sharing-doesnt-work

For Home Sharing to work, the ATV and iTunes must be on the same Apple ID. That doesn't affect AirPlay. Check the ID on your iTunes. You may find some information here Get help with Home Sharing - Apple Support. By the way, the router firewall, which looks at internet traffic has nothing to do with this. The Windows firewall must open certain ports to allow communication between the different machines.

There's clearly something wrong with Home Sharing and Apple TV in the current versions. I thought the issue was only with Apple TV 4, so I'm glad you posted your information.

I'm experiencing the same issue, but the only thing we have in common is iTunes 12.4, so perhaps that's the cause?

Please report this issue directly to Apple via this link:

http://www.apple.com/feedback/

Whilst I'm using Macs home sharing is not a problem for any of our computers or Apple TV's, if you have a problem I suspect it is likely to be within your environment and not with home sharing per se.

The following article(s) may help you.

Troubleshooting Home Sharing

Security Software Issues

Troubleshooting Wi-Fi networks and connections

Recommended Wi-Fi settings

Wifi Diagnostic Software (for Mac users)

You may also find some help on this page, where I’ve collected some of the more unusual solutions to network issues.

When making adjustments to your network for better optimisation, you may find some of the points mentioned on this page helpful.