Home sharing not working after update to iTunes 12.1

Same issue here, but including iPhone 6+ (iOS 8.1.3), iPad Air 2 (iOS 8.1.3) and Apple TV (3rd Generation (1469), 7.0.3 (6917)). I am using Windows 7. My router is an Airport Extreme and has no connection issues. I did a complete reinstall of all Apple services and iTunes, home sharing still doesn't work on any device.

I was able to fix this problem by using one network connection instead of the 2 I had my laptop on. I was using both LAN and wifi even though both connections were to the same LAN. I disconnected my LAN and rebooted the laptop and the service appeared immediately.

Seems like you're one of the lucky ones. I'm in the same Windows 8.1, iTunes 12.1, AppleTV 2 boat where suddenly home sharing just simply doesn't work. All of this worked just fine in mid December the last time I had to travel for work. The only thing that's changed in my setup..... iTunes!

Same here. Two Windows 8.1 with iTunes (one main with iTunes library, other without library) can no longer Home Share, and AppleTV has stopped accessing iTunes on the main PC as well. Only change is installation of iTunes 12.1. Even uninstalled everything Apple and re-installed. I *do* have IPv6 enabled -- it's required for Windows local network homegroup sharing.

I have IPv6 enabled as well... but I've always had that enabled and things worked just fine... until now that is.

I should have mentioned that -- I've had IPv6 enabled all along too, and no problems with Home Sharing until iTunes 12.1.

I'm not sure I really understand this solution (well, at least for my situation). I really only use the home sharing feature when I'm on the road so typically I have my computer connected to a hotel network, and then everything else connected to a hotspot that I create via my computer. I've never set up any port forwarding in the past to make this work so there wouldn't be anything to update. In addition, since I'm on the road all the time my computer's IP address always changes depending on where I am and what network I'm connected to.

I have been fighting this same issue for a week now. I did the uninstall, reinstall of the older video card version, no luck. I saw another forum that said to right click and run iTunes as Administrator. I did that and BOOM I had my AirPlay back. I closed and opened it up again as usual and it was still there. Maybe the stars aligned, but I'm just glad it's working again! Try it out and see if it works for you.

the issue came back!!!!!

I have similar issue and already opened another thread for it...no reply so far. So I'll give it a try in here.

I'm using a Mac Mini (Mid 2010) with 4GB RAM, Yosemite 10.10.2.

The Mac is connected by cable to a Gbit Ethernet network switch.

I hope the following drawing helps to understand the network environment:

Mac <--> Switch_1 <--> Switch_2 <--> Fire TV

Switch_1 <--> WLAN Router AVM Fritz!Box 7270 <--> 30MBit Internet connection

The Mac and the Fire TV (running AirPlay server App) are both connected by Ethernet cable, but to different switches.

No WLAN enabled on Fire TV.

The WLAN router is the DHCP server.

For sure the remote App is running on an iPad (2) which is using WLAN.

All network addresses are in same network and were provided by same DHCP server (running on WLAN router).

All my music and internet radio is coming from the Mac.

I use remote app (latest version from Appstore) on the iPad to connect to iTunes 12.0.1.26 running on my Mac.

In iTunes I selected the Fire TV as AirPlay receiver.

Fire TV is playing all music through my AV receiver.

This is working perfectly fine except one issue which exists since update to Yosemite 10.10.0.

It remained same with Yosemite 10.10.1 and 10.10.2.

My problem is that I need to enable WLAN (wireless) on my Mac since update to Yosemite.

When I disable WLAN remote app does not find my media library anymore and iTunes is unable to connect to the Fire TV.

When I re-enable WLAN, everything is working fine again.

Remember, all devices except the iPad are on a cabled 1Gbit Ethernet.

Before updating to Yosemite I did not need WLAN.

Any idea what's causing this? IP traffic routing issue?

Usually, when I disable WLAN on the Mac, it continues to run for 1 or 2 days where the iPad has no problem to find and connect to the media library.

After a while. running with WLAN disabled, my iPad is not able to "see" the iTunes media library asking me to enable home sharing.

When I check on my Mac, home sharing is enabled.

I then disable and re-enabled home sharing in iTunes and after doing so my iPads is able to "see" the iTunes media library but it cannot connect to it.

I checked routing and arp tables on the Mac but everything looked fine, routing through the Ethernet interface.

I used "fing" on the iPad to see which devices are online and "fing" on my iPad was only aware of the Mac Ethernet interface. No entry for the disabled Mac WLAN interface.

I checked on the WLAN router and ensured that both Mac interfaces have unique host names (aliases) on the router.

To be sure everything is refreshed I rebooted the router.

No change, my iPad was able to find the iTunes media library through home sharing but was unable to connect to that media library.

So I enabled WLAN on the Mac and immediately my iPad could connect to the iTunes media library.

Weird...

Only mitigation I found so far is to re-enable the WLAN on the Mac.

So I assume something is broken in Yosemite / iTunes 12 home sharing.

Has anyone found a solution? Updated iTunes to 12.1.0.71 64 bit for windows 8.1 and home sharing not working. Tried turning it on and off and nothing.

Also got this problem. Running iTunes on Windows Server 2012 R2 datacenter, had been working completely fine, serving my library of music tv and films to my main pc, my appleTV, and my idevices. Now it won't connect, even after the usual pulling and prodding to cajole it into working. Not so bothered with the films as my ATV can just stream them, but my music library is vast and a lot is before I started using iTunes, so I can't just stream my playlists.

Hope Apple unbreaks homesharing soon...