Video of my WiFi iOS 4.2.1 problems

Question

Video of my WiFi iOS 4.2.1 problems

http://www.youtube.com/watch?v=Fn6Reqicos&feature=youtube_gdataplayer

As you can see in the video, looking at the WiFi settings a checkmark indicating I'm connected to the "No Trespassing!" network. Yet there's no WiFi symbol in the bar up top. If I click through to the details for that wifi network, everything is blank. If I hit renew, I get an IP assigned and the WiFi icon appears in the top bar... but only for 10 seconds or so, and then it's gone again. It's like it is unable to retain a DHCP lease.

Same problem on both my iPhone 4 and iPhone 3G and iPad since updating to 4.2.1. At the same time I took this video, my iMac is connected to WiFi without any problems, so it's not something completely specific to my router. (Connected to an airport extreme dual band with the latest firmware.)

If I reboot the airport, the iOS devices can hold the wifi connection longer, but it goes back to this behavior after a day or two. At the time I recorded this video, both my iPhone 4 (used to record the video) and the iPhone 3G in the video, were experiencing the same problem.

Apple... what's going on here?

iPhone 3G, iPhone 4, iPad, iOS 4

Posted on Dec 2, 2010 9:01 AM

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Answer 1

Dec 2, 2010 9:16 AM in response to ThatsUnpossible

This is a user to user help forum only. Apple does not provide direct support or answer any questions here.

Any problem connecting and staying connected to any other wi-fi network if you have access to?

Any change after resetting network settings on any one of the devices? This will erase all wi-fi network settings from the device and require rejoining all wi-fi networks you have access to.

If no change after resetting network settings, and change after restoring one of the devices with iTunes as a new device or not from the backup for the device?

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Answer 2

Dec 2, 2010 9:20 AM in response to ThatsUnpossible

I've seen that in airports when connecting to a wireless network which has access control on it. If when the wireless icon appears you try and open safari, you may find a message waiting for you and upon not responding quickly enough, it dumps you off the network.

I assumed that whatever devices used that wireless network, they must have their MAC address registered and respond with a handshake quickly or they get dumped.

But I can confirm I have seen that behaviour before.

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