iPhone 4 Drops Wi-Fi Sometimes

I’ve been dealing with a problem off and on for days now. At first I thought I could prevent my iPhone 4 from dropping Wi-Fi by removing the most recently installed application that I think might have been creating the problem.

So what’s the verdict? I’m seeing mixed results here. While removing my Yammer application did in fact create a working solution for a greater period of time, it turns out that the problem still very much exists.

So what is the cause?

iPhone 4 Drops Wifi Sometimes
Photo by Inchka

I am running iOS 4.2.x (whichever the latest update is) and I have found, without question, that this is not a problem with my router. This a problem with the iPhone’s ability of both dropping Wi-Fi and completely losing track of all surrounding wireless access points. This means the entire neighborhood just vanishes.

Fixing the issue is more of a workaround as I have to restart the phone. Seems to be affected the most easily with select Internet using applications running in the background. Facebook, Twitter, stuff like this appears to be related… although not directly.

Why an article on this?

I was amazed and pissed off by the lack of clear instances on this issue being found within Google or anywhere on the Apple Web site. Despite the fact that I once was troubleshooting hardware for a living, I was not finding others having exactly the same issue. Worse is if they were, it was poorly documented and lacked the following data.

  • Wi-Fi drops from iPhone 4 w/iOS 4.2.x(latest)

  • All previously available networks disappear from iPhone wireless network screen
  • Router verified working well and tested with various channels just to be safe, plus with other wireless access points throughout the city.

    With any luck, my sharing this info will help others to get Apple to realize that this is indeed a bug, and that calling Apple Care to be dismissed and told to “restart my router” isn’t the fix needed. Apple needs to actually consider the fact that it does, indeed, have a bug that needs to be addressed.

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  • Beau Djangles

    i’ve had a similar problem for months. i’ve ruled out the router.

    whenever i pick up my phone after 15 mins or so of inactivity, i know that it although it says it’s connected to the wifi (after i unlock) i can’t access anything, not even the local network. the only solution is to cycle the wifi off and on.

    it’s not the same issue though, because i don’t lose my settings and it still reads my wireless network name in the settings. it just doesn’t work though until i reset the wifi.
    i’ve got a stuck pixel too so i may use these two issues for a brand new phone.

    btw i’ve got static routing and wpa2 encryption. i’ve changed the wireless channel with no success.

  • Houssam

    i have the same issue as Beau Djangles stated, have to turn the wifi on and off to make it work, very annoying…
    IPhone 4 IOS 4.2.1

  • Dean

    Sounds like a genius bar appointment. They’ll tell you to restore it in iTunes and reproduce it without any non-default apps and come back if it still has a problem so best to do that before bringing it in and to keep it in that state when you go to see the “genius”.