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after upgrade my iPhone 4S to iOS 7.1 I have no Wifi, after wake up from sleep!!

Hi,


after upgrade my iPhone 4S to iOS 7.1 I have no Wifi, after wake up from sleep!! It takes several minutes until it workes proberly again. I was yesterday already in the Apple store and they made a service install of iOS 7.1, where the complete iOS was installed new instead of just updating it. Also the settings menu is not reacting during this time. somtimes the complete iOS is not reacting. If this occures only a hard rest is solving and then the Wifi stack is working well until is sleeps again. Then the problem starts again.


Does anyone raised already a ticket at apple or has a solution? A downgrade to 6.1.3 is not possible/allowed, but this would help.


BR

THG

iPhone 4S, iOS 7.1

Posted on Mar 13, 2014 7:47 AM

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Posted on Mar 13, 2014 7:12 PM

I had the same problem and these are the steps I used to fix my wifi from not working. I found this on the net so this is not mine. I did 1-3 and then mine started working and so far so good:


1- iPhone WiFi issues? Reboot your device!

Well, I assume most of you have already tried that but in case you haven’t, simply press and hold the power key along with Home button until you see the Apple logo appearing again. If it solves the iPhone WiFi issues, congratulations. You had it the easiest way!

2- Reset network settings:

Resetting network helps in some 60 – 70% of cases suffering from iPhone WiFi issues. Go to Settings > General > scroll down to Reset, and thentapon Reset Network Settings. If you are on a secure network, it will ask you pass keys.

3- Check router:

Perhaps the issue is not with your iOS 7 updated device, but your internet connection? Before proceeding to the next fix, make sure your network is working fine and so is the router / modem. Try same network on your other devices to ensure that it is working fine.

If all is good with network and network equipment, proceed to the very last option.




4- Restore iPhone – Gah!

If you don’t seem to solve the iPhone WiFi issue using any of the above checkups, final resort is to reset your Apple iPhone. Resetting Apple device sort of cleanses your device so it will come out all clean and error-free like new.

To reset your iOS 7 device, head over to Settings > General > Reset, and tap on the Reset All Settings. You can also reset your device from iTunes. The option Restore iPhone will show up once you connect your device with the computer.

107 replies

Mar 18, 2014 10:09 AM in response to THG20

To add to the voices above .... I have spent hours trying to fix my iPhone 4s.


First problem suddenly no service from my network provider and " losing" incoming texts from other iPhones - other handsets fine also notice battery getting very hot. I removed case and check apple support. Apple say upgrade to latest software. I clean up iPhone and upgrade software. Absolutely no service but battery not getting hot. I check with carrier 3 in uk - recorded msg on their recorded telephone service saying apple users switch off phone remove sim re-install. Their website is down and long telephone queue. I switch off etc then get an "update your driver on iTunes" msg which i do. I then reset my network connections and despite following all suggested fixes in these forums nothing!! iPads IPods and husbands iPhone 5 all fine. iPhone 4s useless!!

Mar 18, 2014 11:07 AM in response to THG20

This issue has been reported ever since 7.0X , for me the WiFi started expiriencing problems with 7.1 the last update.


They 3 solutions provided as follows:


1. Use airplane mode, enable wifi, connect to the wirless network.

2. Reset network settings in general/setting , connect to the network.

3. Reset the phone or the access point.


Other common one... (really dumb)


4. Say it's a hardware failure.


Those 3 do not work do not even waste time doing, if they do work it was because it was a coincidence, it was not related to those usless 3 posted solutions.


Going to my next point any person who says it is a Hardware issue, use warranty, it is a ridiculous answer, and here is why, there a lot of people with this issue and it related to the upgrade. Warranty has nothing to do with it. Yes it can be solved if by luck you are in warranty with an iphone 4 or 4s or and iPad 2 or 3. Why it will work because this happens in some devices not all.


Why this happens? I have read a lot of cases and done some troubleshooting myself. It is related with the WiFi chip. When the problem begins you will notice the phone will overheat and then the WiFi will start malcfunctioning, that is why when you stand near the access point it might work because the chipset via software is being not used properly. Why I think Apple won't give a ****, it is because it happens mostly in old devices and well if you upgrade to a new device, then they will only handle fixes for newer devices and also they focus on newer technology. So people using old devices are well ... not a priority. Sad as it sounds , this is what I have noticed.


Fix: easy , give us the option (for old devices) to go back to OS 6.x

Mar 19, 2014 9:02 AM in response to THG20

i guess i found it,if u have LINKSYS e900 Router or any cisco product this should works,i recently change some options in it: LOGIN TO UR ROUTER - go to APPLICATIONS AND GAMING section and select QOS,by Default the NO ACKNOWLEDGMENT is Disabled ( u can check this link , http://kb.linksys.com/Linksys/ukp.aspx?pid=80&vw=1&articleid=25665 ) [Acknowledgement feature, so the Router will not re-send data if an error occurs,, i enabled it b4 a couple of days ( just for curiousity ) and actually i didnt see any problem only yesterday till today ( btw i updated my iphone5 5 days ago ) ,however i DISABLED it again and it works,u can try this its very easy,make that test cuz its enough to wait ur iphone for 10 mins and if this isnt working u will immediatly see that the WiFi is droped , AND I TRIED IT 3 TIMES TO BE SURE ( Disable - enable and vice verca ) check ur routers and if any router have this option try to Enable it , i also tried to reset my Network on my iphone but its not the case

Mar 19, 2014 9:16 AM in response to THG20

i guess i found it,if u have LINKSYS e900 Router or any cisco product this should works,i recently change some options in it: LOGIN TO UR ROUTER - go toAPPLICATIONS AND GAMING section and select QOS,by Default the NO ACKNOWLEDGMENT is Disabled ( u can check this link ,http://kb.linksys.com/Linksys/ukp.aspx?pid=80&vw=1&articleid=25665 )[Acknowledgement feature, so the Router will not re-send data if an error occurs,, i enabled it b4 a couple of days ( just for curiousity ) and actually i didnt see any problem only yesterday till today ( btw i updated my iphone5 5 days ago ) ,however iDISABLED it again and it works,u can try this its very easy,make that test cuz its enough to wait ur iphone for 10 mins and if this isnt working u will immediatly see that the WiFi is droped , i tried it many times( Disable - enable and vice verca ) check ur routers and if any router have this option try to Enable it , i also tried to reset my Network on my iphone but its not the case , UPDATE: sorry guys ,again this happened

Mar 23, 2014 5:14 AM in response to DaveBrunel

I have the same issue with 3 iphone 4s models after the update. I went through all steps with the exception of a complete reset...which I am not willing to try. All other devices work perfect as they normally did over wifi. My router is a Linksys EA3500.


Thankfully I did not udate my ipad yet, and I don't plan on doing that any time soon.


I STRONGLY advise everyone to AVOID the 7.1 updated until apple has a fix for it.


My next phone will defiantly be Samsung.

after upgrade my iPhone 4S to iOS 7.1 I have no Wifi, after wake up from sleep!!

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