Anyone else having problems viewing iTunes through the ATV Computers menu option, even with all home sharing switched on?

Hi,

For some reason, I can no longer access my iTunes libraries through the Apple TV Computers menu option. All home sharing is turned on on both my Macs and The Apple TV device itself. I have all the most recent software updates on all devices, I've tried restoring my ATV and have even fully disconnected/reconnected he router.

Anyone else having similar problems or any ideas how to fix it?

Thanks.