I spent 3 hours of research on the Internet and finally found a clue that solves to setup the WiFi sync function of iTunes on Windows 7 with AVG anti-virus software. Today, I just want to share what my setting is and my situation.
Situation:
First of all, I surely set up to turn-on Wi-Fi sync on each iPhone, iPod touch, and iTunes, and basically what I should be supposed to do is to open iTunes and turn on iPhone and iPod touch. That should be all.
However, Wi-Fi sync never succeeded, and iTunes never shows my iPhone and iPod touch on its screen even though both are in a same network.
I once turned off Firewall on AVG anti-virus software, and reboot iTunes itself; then, iPhone and iPod touch correctly appear on iTunes.
In my case, Firewall is the key to solve this series of problem on the Wi-Fi sync.
How To:
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Open the setting window of AVG security, and the firewall setting from tool menu.
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Choose your current security profile from “profile” section on “Firewall Setting.”
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Choose “System service,” and open “User System Rule Manager.”
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Choose “add” and create a following new rule:
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UDP
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In-n-/Out
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Remote and Local port: 5353; 9753; 3702
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All network
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Save setting, and reboot iTunes to see what’s going to happen
I personally have no idea what 9753 and 3702 port work for. The 5353 port is listed as Multicast DNS (MDNS) at iTunes help page, but the other two ports are found on support community and blog post.
Although all suggesting posts say that the direction is “out,” and local port isn’t a matter for Wi-Fi setting, in my case, it does matter. I tested all possible settings, and the above setting is the only setting that enable Wi-Fi sync on my Windows 7.
BTW, if you are using Windows Firewall function, then this post isn’t a solution since I switched to Windows firewall to see the Wi-Fi sync works or not, and it does work properly without any additional setting.
