Listen its simple, Mybook world dont make apple any money !!! so why not block all sharing devices and then sell iCloud ... Not really any more to it than this, My book works perfect on my mac which has not been update and on my home computer that has been updated it dont. In the wise word of the MiaCats Simples........
Let me summarize the potential solutions:
- Make sure iTunes is running.
- Make sure Home Sharing is enabled: Advanced -> Home Sharing.
- Make sure iTunes and your Apple TV are logged in with the same Apple ID.
- Make sure the Apple TV and computer are on the same network.
- The first three numbers of the IP address should be identical. Only the last one should differ.
- Make sure the computer is not blocking incoming connections through a firewall/antivirus.
- Easy test: Disable the computer's firewall completely.
- Try whitelisting the iTunes application.
- Try allowing TCP 3689 and UDP 5353.
- On Windows: Make sure that Bonjour is enabled:
- Windows Control Panel > Administration Tools > Services
- Right click on "Service Bonjour"
- Start the service
- Close then re-open iTunes
- On the Mac: Make sure multicast DNS is not disabled.
- Check in your Terminal:
- ps aux | grep mDNSResponder
- If it has the option -NoMulticastAdvertisements then it's disabled and Home Sharing will not work.
- Enabling it can be a security risk.
- Check in your Terminal:
- Try turning off QoS in your router.
- Try rebooting your router.
- Try connecting one of the devices (or both) using an ethernet cable instead of WiFi.
- Try a different router or network.
In my case it was multicast DNS.
Another note on Bonjour/mDNS:
If you have another Mac/PC/iPhone/iPad/iPod on your nework you can check from that device that Home Sharing is properly accessible on the computer where you run iTunes, using a Bonjour browser:
You should see a service called "_home-sharing.tcp".
I found out what my problem was. I have a time capsule that was running two wireless networks, a regular one and the guest one. Apple TV would randomly choose any of these networks and if it did not match the one my computer with iTunes was connected, the sharing features would not work. So I just had to make shure everything was connected to the same network and now it works.
Hi All - I have been having the same issue. I've gone back and forth between this page and the Firewall company's FAQ's/Help, etc. However, the thing that finally (FINALLY) worked for me is that I plugged in either the Apple TV or my computer to the cable box using a cable (i.e. either the Apple TV OR my computer that had ITunes on it had to be physically connected to the cable box and NOT running on wireless). I don't know why this seemed to have fixed it, because I have been adjusting the firewall and virus settings like crazy with no result. Anyway, wanted to throw out what seems to have finally fixed it for me (oh, and by the way, the ITunes library has to be open - if it isn't open on the computer, Apple TV suddenly forgets that I had a library - once I open ITunes, however, bam, it remembers/finds it again).
I read through most of these only to find that I was using the wrong apple id on the apple tv. Using my email adress for one and my apple id for the other which are the same except for the @ extension. It will not tell you it doesnt recognize an incorrect user id on the apple tv or that they arent matching exactly.