I'm on a Mac Mini running Moutain Lion. I finally figured it out about 30 min ago. I went into iTunes, with my phone connected via USB, unchecked Sync over wifi, closed iTunes, and restarted my Mac. I open iTunes again, checked Sync over wifi, and restarted my computer again, and now it's working as normal . So I'm not sure what was going on, but it's okay now.
I'm having that problem, too, with my iPhone 4S on Windows 7 and iTunes 10.7. I can connect and sync my iPhone with a wired USB connection, but iTunes does not see my iPhone 4S on wifi.
I've power cycled my iPhone, power cycled my router, rebooted my computer, told my iPhone to forget the network, then reconnected the network -- I've done all of those many times.
Wifi on my iPhone is otherwise working fine.
No matter what I try, my iPhone will not connect over wifi with iTunes. Wifi sync is broken.
Windows 7 (64-Bit) [ALL Updates installed]
iTunes 10.7.0.21 (newest Version)
iPhone 4s (running iOS 6.0)
before i had NO single issues syncing over WiFi
now my iPhone 4s doesn't even appear in iTunes when only connected to WiFi
i tryed to:
*restart Computer + iPhone + Router
*Connecting iPhone to charger
*remove iPhone from WiFi and then adding WiFi access again
*Going into Flight-mode and then to normal mode
*all things together
All in all: NOTHING happened!
hope they will patch this fast :S
It seems to be working now. I tried everything in the previous suggestions, including power-cycling my router, turning WiFi update off and on in iTunes, restarting my computer after each change, and so on.
I think that what worked was power-cycling the router and then rebooting the iPad, but I'm not sure. I am sure that power-cycling the router by itself was not enough in my configuration, in contrast to other people's experiences.
Exactly the same issue. 4S, firewall off or on, restarted my AP Extreme, devices, laptop.
The syslog is filled with these lines:
9/20/12 10:15:22.848 PM mDNSResponder: ERROR: handle_resolve_request bad interfaceIndex 1
9/20/12 10:15:22.996 PM mDNSResponder: ERROR: handle_resolve_request bad interfaceIndex 24
9/20/12 10:15:33.670 PM iTunes: AVF KeyExchange Version from driver for Certificates 1
9/20/12 10:17:34.385 PM iTunes: _receive_message (thread 0x116bda000): Could not securely receive message size: SSL_ERROR_ZERO_RETURN
9/20/12 10:17:34.385 PM com.apple.usbmuxd: SCEDeviceSocketCallback 0x1020062a0-iTunes/com.apple.iTunes remote peer closed connection for sce 0x1020062a0.
9/20/12 10:17:34.469 PM iTunes: _send_message (thread 0x116bda000): Could not securely send message size 406: SSL_ERROR_SYSCALL errno (Broken pipe).
9/20/12 10:17:34.470 PM iTunes: AMDeviceStopSession (thread 0x116bda000): Could not stop session with device 3: kAMDSendMessageError
9/20/12 10:22:27.158 PM com.apple.usbmuxd: SCEDeviceSocketCallback 0x1020037b0-iTunes/com.apple.iTunes remote peer closed connection for sce 0x1020037b0.
9/20/12 10:22:27.158 PM iTunes: _receive_message (thread 0x7fff7b70e180): Could not securely receive message size: SSL_ERROR_SYSCALL (Early EOF reached)
9/20/12 10:22:27.577 PM iTunes: _send_message (thread 0x116bda000): Could not securely send message size 406: SSL_ERROR_SYSCALL errno (Broken pipe).
9/20/12 10:22:27.578 PM iTunes: AMDeviceStopSession (thread 0x116bda000): Could not stop session with device 3: kAMDSendMessageError