For nearly a thousand years, WiFi sync between my phone (currently running 10.3.2) and Mac mini (running Sierra presently) worked just fine. Suddenly last week, it stopped. Syncing with a USB cable works fine. Unplug the cable, and you get the grey sync button and the message in the title.
I have tried all of the following multiple times and in varying orders. None of it has helped:
I have tried all of the following multiple times and in varying orders. None of it has helped:
- Restarting iTunes
- Rebooting the computer
- Rebooting the phone
- Connecting with a cable, unchecking the "wifi sync" checkbox, applying that, then re-checking it and applying that
- Reinstalling iTunes
- signing out of iCloud on the phone (and back in)
- signing out of iCloud on the mac (and back in)
- killing usbmuxd and letting it restart
- killing iTunes helper and restarting it
- Changing the name of the computer and toggling the wifi sync checkbox in iTunes.
- Switching between Ethernet and WiFi connectivity on the mac (both networks are bridged with an AirPort express).