ATV4 Does Not See Home Sharing After It Sleeps

Have you recently updated the ATV tvOS to the current version 9.2? That update may have triggered the problem.

When you wake ATV up, can you use other apps, say YouTube? This would confirm that it is connected to the network. Some users have reported that ATV loses its network connection after sleeping, but it works ok for most.

Be sure the Apple ports are not blocked in your iMac firewall, see TCP and UDP ports used by Apple software products - Apple Support Since this was working, it may have been broken by an OS X update.

Just to be certain, the firewall is turned off on your iMac computer?

Other ATV apps work, so it does have a network connection when it wakes up. Good.

Is Home Sharing enabled in the ATV settings when it wakes up? Assuming it is, ATV is supposed to broadcast a request for available services (bonjour protocol). Either it's not doing this, or the message isn't getting through.

What does your network look like? Is it a simple setup with a single router, ATV and iMac connected by ethernet or WiFi (please say which)? Or does it include multiple routers, WiFi hotspots, switches, etc.? What is the make and model of the router? I'm trying to figure out if those broadcast messages may not be propagating from ATV to iMac.

Experiencing the same issue. Posted about it here: AppleTV 4 loosing connection to shared iTunes every time it turns off

No solution yet.

Same here, i have to unplug it from power and restart it every day. i never had problems with atv 1-3.

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You should check the items here Get help with Home Sharing - Apple Support to be sure your setup is not the problem.

Sometimes the necessary multicast packets are not routed between subnetworks. This is more likely if both devices are not on the same WiFi network. Please describe how your computer and ATV are connected to the main router.

Finally, there is a restart item in the System menu which might be more convenient than pulling the plug.

Its all in the same Network, wired. And the restart doesn't work, only unplug and plug again. 2 ATV2 and 2 ATV3 work without any problems, only the ATV4 has it and a lot of more things they should be changed

Right. You should report this here https://www.apple.com/feedback/appletv.html just to add weight to the growing pile of problems.

As I said to Poldy001, looks like a problem. You need to report it to add to the stack of complaints piling up on the floor at Apple.