Apple TV 3 can't connect to shared iTunes library
My Apple TV 3 says it can't connect to my iTunes library, which is stored on my 2014 MacBook Pro. I've had this working without fault until I bought an Airport Extreme.
Here's what I've checked:
- Devices are all connected to the network via Wi-Fi (guest network isn't enabled, nor is separate 5 GHz network). I've tried re-starting the router.
- Sharing is turned on in iTunes preferences. I've tried turning it off and back on again.
- Checked firewall settings on the MacBook, and tried turning it off.
- The Apple TV is connecting to the internet, and can access iTunes, Netflix, etc.
- AirPlay from the MacBook works fine.
- OS and software is up-to-date on all devices.
- Tried accessing the library from my iPhone 6. This doesn't work either.
I'm thinking it's an issue with the Airport Extreme since that's the only thing that's changed recently. It's in DHCP and NAT mode, connected to my ISP-provided modem/router set to modem-only mode.
Any ideas?
Apple TV (3rd generation), iOS 7.0.2, null