Apple TV: Data does not sync or stream after entering passcode

Resolution

This can result from a firewall being enabled on your Mac or PC. If you have a firewall enabled, please make the following adjustments:

On a PC

Make sure the firewall is configured to allow TCP connections on port 3689. This will allow the transfer of content for syncing and or streaming to your Apple TV. If you use Windows Firewall, see "iTunes for Windows: Music Sharing With Windows Internet Connection Firewall " for detailed steps. If you use other firewall software, check the documentation for that software on how to open port 3689.

On a Mac

1. Open the Sharing System Preference (choose Apple > System Preferences and then choose View > Sharing).
2. Click on Firewall.
3. In the "Allow" field make sure the "iTunes Music Sharing" check box is checked. This will allow the transfer of content for syncing and or streaming to your Apple TV.

If you use other firewall or internet protection software, check the documentation for that software on how to open TCP connections on port 3689.

Note: If you use "fast user switching" on a Mac with firewall enabled you'll need to enable additional ports to allow streaming to Apple TV. If you don't, only the first user will be able to stream to Apple TV. For one additional user enable TCP port 49152. For each additional user, open the next incremental port (49153 for three users, 49154 for four users, 49155 for five users, etc.).

Follow these steps to add the necessary ports:

1. From the Apple menu, choose System Preferences.
2. From the View menu, choose Sharing.
3. Click the Firewall tab.
4. Click New.
5. From the Port Name pop-up menu, choose Other.
6. In the TCP Port Number(s) field, type in:
   
   491452, 49153
   
   This example allows for a total of three users. If you need more, enter the additional number(s) as described in the note above. If you need fewer, just enter the first number.
    
7. In the Description field type in: Extra Apple TV streams
8. Click OK.