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I have an 2G (MC Model) 8GB iPod Touch on iOS 4.0 that has a strange issue. Push notifications used to work just fine, but for the past month or two, I don't get any notifications while I'm on my home wifi network. If I connect my iPod to any other wifi network (open private, public hotspot, etc), I get flooded with all the past notifications. I have tried restoring my iPod numerous times, tried downgrading to 3.1.2, tried different combinations of DNS servers (as mentioned on the net), but nothing works. Any ideas on how to go about getting push to work when I'm at home?

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Might be stating the obvious but does the iPod Touch have an internet connection when it's on your home network? (browser, email, ...) –  Jannemans Jan 10 '12 at 9:29
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2 Answers

Your push-port (5223) could've been closed. Try to open it in the router-interface.

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Tried it, still no joy. I even went as far as putting my iPod in the DMZ, and that still didn't kick-start my notifications. –  Keith S. Sep 1 '10 at 13:52
    
@Keith S.: You have DMZ at home? Well, then you should be able to monitor the traffic and see on which port push messages get blocked ;-) –  Tim Büthe Apr 6 '11 at 13:30
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What has changed since the push notifications stopped working?

Sounds like the connection state is being dropped by your home router, either because of a timeout or the connection table is overflowing; most of these embedded routers don't have much memory in them for state info.

What is your access point/router/firewall? Is it running a custom firmware, and/or have you modified any settings, like connection timeouts? Some open-source firewalls and router firmwares have options for tweaking the connection timeouts.

Are you using BitTorrent or any other high-connection-count protocols? If so, what happens if you stop using them for a day or so?

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