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My 4 can see home wifi but won't use it without restarting

599 Views 14 Replies Latest reply: Jan 18, 2013 5:02 PM by stuperburrito RSS
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Nov 14, 2012 6:24 PM

I have wifi at home and at work. Many times when I come home, my 4 will automatically connect to my home wifi, but seemingly won't use it without restarting the phone. I tried going into the network settting and did the reset and went and re-entered the wifi passwords for home and work; and soon after displayed the same bahvior. Work wifi doesn't bother it. My 4 didn't aquire this problem until OS6 and still does it under 6.0.1. Turning off the phone's wifi and back on doesn't help. Renewing lease on wifi doesn't help. My wife has the same phone on the same wifi and the same time and it does'nt do this. She doesn't have wifi at work.

 

Sometimes I get very sporadic an limited data, could be using 3G. After phone restart the phone is fine until another day when the problem returns. I've tried turning ap's off but nothing helps but a restart.

iPhone 4, iOS 6.0.1
  • electronicsguy Level 2 Level 2 (190 points)

    try going into the router settings and changing:

     

    1. channel

    2. authentication - if it is WPA aes+tkip, change it to only AES or only tkip and check everytime

     

    3. mode: set only to 802.11n or only 802.11g and check.

     

    try combination of above methods till one succeeds

  • Thom_D Level 3 Level 3 (970 points)

    The first thing you need to do is restart your router.  Unplug it, wait 1-2 minutes, plug it back in and wait for it to connect to your provider and download the latest IP informaiton.

     

    Next go into settings and forget your wifi network.

     

    Reconnect to your home wifi.

     

    Go into the settings for your network and set the proxy to Auto not off or manual.

     

    Hopefully this will work for you.  I had the same problem when I updated to iOS 6.0.1 and setting the proxy to auto seems to have cleared it up.

     

    Not sure what Apple has done to the firmware and how it interacts with wifi, but hopefully they will have it worked out when iOS 6.1 is released.

  • stuperburrito Level 1 Level 1 (5 points)

    I am having the exact same issue with my iPhone 5. Even after updating to iOS 6.0.2 didn't help.  I've exchanged for another iPhone 5 at the apple store and still the same. It only happens when I go from my work network (wpa2 enterprise) to my home network (wpa2 personal). I tried changing wireless settings in my home Linksys Wrt400n router with no success. The only thing that works is restarting the phone (or not connecting to the work wifi).  Hope this gets fixed with 6.1.

  • stuperburrito Level 1 Level 1 (5 points)

    Looks like the issue I was having with work/home wifi has been resolved. It could be 1 of 2 possibilities.

     

    Possible fix 1:

     

    I have a dual band Linksys at home and was previously using the 5GHz band.  I switched to the 2.4GHz (G only, WPA TKIP) band and have not seen the issue since.

     

    Possible fix #2:

     

    I recently had other issues with the IPhone 5 and did a factory reset and set it up as a new phone (no sync at all)

     

    I'm pretty sure #1 was the true fix for this issue but it could very well be the factory reset.

  • stuperburrito Level 1 Level 1 (5 points)

    Looks like its definitely the 5GHz channel of the Linksys not playing nice with the Iphone5.  I switched back to that and immediately saw the issue again.  It's most likely the Iphone not playing nice with the older wifi router.

  • stuperburrito Level 1 Level 1 (5 points)

    Yes.  I had the exact same symptons with my iphone 5.  Only happens when I switch from work to home wifi.  I even had the iphone 5 replaced with no success.

     

    I recently decided to try a new wifi router (after my previous post) and have not seen the issue since.

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