E-2043

Q: iOS 8 Wi-Fi problems

WI-Fi problems on iPad Air, iPad mini with Retina display and iPhone 5S after upgrading to iOS 8.

Typical results from OOKLA Speedtest before upgrade: Ping 17 ms, Upload 21 Mbps, Download 4.4 Mbps

Typical results after upgrade: Ping 39 ms, Download 2.9 Mbps, Upload 0.47 Mbps

iPad 2 with iOS 7.1.2 get 15 Mbps download and 4.4 upload on the same network.

Resetting network settings on the iOS 8 devices did not improve the performance.

Changing band on the router from 2.4 GHz to 5 GHz did give me back the speed on all devices.

However the speed occasonally drops on the iOS 8 devices, and the signal strengt can go from full til lost connection without moving the devices.

Also sometimes the Wi-Fi SweetSpots app report 0 mbps when the signal strenght is indicated as full and then suddenly go up to around 58 Mbps again.

It is almost like the device is trying to use cellular network that I do not have on the iPads before it suddenly switches back to Wi-fi nettwork again.

I am thinking about going back to my iPad 2 with iOS 7.1.2 that is working perfectly until the Wi-Fi issues are resolved.

 

Any help will be very much appreciated!

iPad Air Wi-Fi, iOS 8

Posted on Sep 20, 2014 9:17 AM

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Q: iOS 8 Wi-Fi problems

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  • by macfanta,

    macfanta macfanta Nov 30, 2014 3:31 AM in response to Stanky
    Level 1 (28 points)
    Mac OS X
    Nov 30, 2014 3:31 AM in response to Stanky

    Stanky, I'll reproduce here the Gazole post if you didn't read before.

    He is talking about BEACONS and LOCATION SENSORS FOR WI-FI.

    Don't use the word "ridiculous" so openly as you used. I told I'm not engineer or programmer, just read Gazole's post and used his focus on LOCATION/REGION theme to solve my issue. I didn't change any of his suggestions, I just verified that my Country settings at 5GHz band was changed to Mexico and turn to Brazil as the 2.4GHz band setting. It solves my issue that started after upgraded to 8.1.1

     

     

     

     

     

    Folks, as far as I see disabling Location services for Wi-fi as advised by some people here helps someone as Apple seems to have issues with 802.11d protocol implementation in iOS 8 http://en.wikipedia.org/wiki/IEEE_802.11d-2001 and Location sensors for Wi-Fi.

    Basically what 802.11d does is that it does not allow you to use certain channels on Wi-Fi in certain countries. As you can see from this table (http://en.wikipedia.org/wiki/List_of_WLAN_channels#5.C2.A0GHz_.28802.11a.2Fh.2Fj .2Fn.2Fac.29.5B17.5D) you can not use any channel you like while you are in US, some channels are not allowed in EU etc...

    What happens nowadays with lots of routers installed here and there is that some routers are sending 802.11d beacons and these beacons carry country code, but these country codes are not correct sometimes. So some router (most of those are made in China) broadcasts CN country code (which is China), iOS device sees this beacon and applies certain restrictions on channels it (iOS device) will operate. Thus some neighbour with such router might ruin your 5GHz 802.11n. If you have your router setup for US 802.11n channels (or set to Auto) and your iOS device see beacon from some other country earlier than same beacon from your router - you're stuck and your iOS device can't connect to your 5ghz 802.11n.

    How to check if this is an issue:

    if you're on Mac, start Terminal and run the command /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -s

    you will see the following response (list of networks our Mac see)

    SSID           BSSID                    RSSI    CH   HT   CC   SECURITY (auth/unicast/group)
      dlink178      1c:7e:e5:d0:df:хх   -65   1,+1  Y      RU   WPA(PSK/TKIP,AES/TKIP)
      hh245          cc:5d:4e:fb:8f:хх    -67   1       Y      TW   WPA2(PSK/AES/AES)
      Dread          00:22:90:90:07:хх -69   11      N     --      WPA(PSK/TKIP/TKIP)
      MajorWiFi   50:46:5d:cc:c2:хх  -41   6       Y     --      WPA2(PSK/AES/AES)
      sohc             f0:7d:68:9b:da:хх  -75   6       N     --      WPA(PSK/TKIP/TKIP)


    you can see in CC column that some routers broadcast country code, some not. Thus is I am in Russia and want to use Russian 802.11n channels I might face an issue as my neighbour's wi-fi router is broadcasting Taiwan country code.

    Why resetting network settings might help? Because when you do the reset, iOS device resets the country codes it seen before and if you're lucky enough - it will hear the correct 802.11d beacon from your network earlier than any other.

    To fix this particular issue you need to shorten beacon interval on your router from 100 (default) to let's say 75 (on my dd-wrt it looks like this)

    This will make your router to send beacon more often, so chances that your device sees your network earlier than others are higher.

    2014-10-07 10_44_02-clipboard01_801.jpg (JPEG Image, 584 × 357 pixels).png

     

    Another point is to enable 802.11d in your router if it is not enabled yet (it is not enabled if you see "--" in CC column in terminal output higher above)

    I spent lots of hours trying to figure out why my Macbook can't use my 5ghz 802.11n network until I found the great post about this (http://wifi-mac.blogspot.ru/2013/03/mac-os-x-5.html). All credits go this guy.

     

    It seems that Apple made a mistake with the priorities device gives to data it receives from location sensor and Wi-fi. So if Location sensor tells device that you're in US and 802.11d says you're in China, obviously Location sensor should be the trusted source which seems to be not the case with iOS 8

  • by macfanta,

    macfanta macfanta Nov 30, 2014 3:53 AM in response to Djraiu
    Level 1 (28 points)
    Mac OS X
    Nov 30, 2014 3:53 AM in response to Djraiu

    I run the Gazole's code on my MBP now

    /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -s


    and find this:

    Screen Shot 2014-11-30 at 9.34.35 AM.png

    look, I live at Brazil but there is some neighbour that use "US" country setting.

    this is not a rare situation at countries worldwide.

     

    Gazole lives at RUSSIA, and his solution can solve their issues.


    BUT WE USE APPLE DISCUSSIONS FOR WORLDWIDE MEMBERS


    HAPPY because Gazole wrote his post in english not in RUSSIAN


    He made another AD member (me) happy.


    Sorry for other people that remain with this issue

    Sorry for other people don't want to move a thumb to find a solution

    Sorry for people think I'm here to solve issues for US members only

    Sorry for people don't want to read my posts because my poor english but I'm doing my best 

  • by Winthorp,

    Winthorp Winthorp Nov 30, 2014 4:56 AM in response to E-2043
    Level 1 (0 points)
    Nov 30, 2014 4:56 AM in response to E-2043

    I have the same problems and the 8.1.1. update has not fixed the issue any suggestions?

  • by JamesWedderburn,

    JamesWedderburn JamesWedderburn Nov 30, 2014 5:16 AM in response to E-2043
    Level 1 (0 points)
    Nov 30, 2014 5:16 AM in response to E-2043

    HI,

    Firstly I'm sorry your having these issues, and Apple obviously wants to help resolve things like this.

     

    What we've seen so far, is that resetting the network settings on the iPad or reinstalling the software package from iTunes on a computer can and has resolved this for many customers.

  • by JamesWedderburn,

    JamesWedderburn JamesWedderburn Nov 30, 2014 5:17 AM in response to Winthorp
    Level 1 (0 points)
    Nov 30, 2014 5:17 AM in response to Winthorp

    HI,

    Firstly I'm sorry your having these issues, and Apple obviously wants to help resolve things like this.

     

    What we've seen so far, is that resetting the network settings on the iPad or reinstalling the software package from iTunes on a computer can and has resolved this for many customers.

  • by Winthorp,

    Winthorp Winthorp Nov 30, 2014 5:27 AM in response to JamesWedderburn
    Level 1 (0 points)
    Nov 30, 2014 5:27 AM in response to JamesWedderburn

    Thanks James, do you have instructions how to reinstall the software package from iTunes?

  • by bobbyleebudde,

    bobbyleebudde bobbyleebudde Nov 30, 2014 6:03 AM in response to E-2043
    Level 1 (0 points)
    Nov 30, 2014 6:03 AM in response to E-2043

    Hello I have a IPhone 6 on iOS 8.1.1 and I am still having wifi problems.  My device will work great for a few days on wifi than out of nowhere it will not connect

    i tried to do a restore from ITunes I have even gotten a new router and still happing. Has anyone else had problems like this with iOS 8.1.1?

  • by KristyfromUK,

    KristyfromUK KristyfromUK Nov 30, 2014 6:43 AM in response to bobbyleebudde
    Level 1 (0 points)
    Nov 30, 2014 6:43 AM in response to bobbyleebudde

    I've found a couple of sites to download firmware (http://www.idownloadblog.com/download and https://ipsw.me.8.1) but downgrading or completely wiping didn't resolve my issue with 2 x problem iPads (iPad 2 and Air). A 3rd iPad (iPad 2) has had no issues.

     

    As far as I can establish the cause of my problems is that the iPads can't lock on to a wireless network and continue searching/switching rendering the devices unusable. To get round this I've made sure that only a single wireless network is available. I have a dual band router (2.4 Ghz and 5 Ghz) and a repeater that all used the same network name (SSID). I've told the iPads to forget the network then renamed the 5 Ghz to have 5GHZ on the end and then connected it to that frequency only. It works'ish fine although performance is not fantastic. As soon as I introduce the old SSID running at 2.4 Ghz it goes back in to the same vicious circle (between 3G/4G and known wireless networks).

     

    I would like to know WHEN Apple are going to fix the issue? It would be good if they had a bulletin board somewhere that acknowledge there are issues and an update on progress. An apology would be good as well!

  • by don_wan,

    don_wan don_wan Nov 30, 2014 12:51 PM in response to JamesWedderburn
    Level 1 (0 points)
    Nov 30, 2014 12:51 PM in response to JamesWedderburn


    Hi James, it would be really good if you could just confirm you are replying officially on behalf of Apple ?.It certainly seems as though you respond to posts in terms that imply you are indeed an Apple employee. For example, in another thread you wrote "Honestly at Apple I don't belive (sic) we have an age limit.".

     

    Assuming you are responding on behalf of Apple, could you please explain what Apple is doing on behalf of all those Customers on this discussion for whom neither the resetting of network settings, nor the re-install of IOS makes any difference to the problems we are experiencing with wi-fi since the update to IOS8?

     

    Regards

  • by Dan Woo,

    Dan Woo Dan Woo Nov 30, 2014 2:01 PM in response to macfanta
    Level 1 (4 points)
    Nov 30, 2014 2:01 PM in response to macfanta

    Well thanks for editing out the incorrect quote.  I never said there are no region or country settings in existence anywhere WORLDWIDE. I said they don't have that setting available or enabled on US routers.  Also, the reason people are critiquing your "solution" is that you came in here with an attitude that you had solved the problem for everyone WORLDWIDE, and that they are either stupid or lazy because they aren't following your advice.  You followed that up with condescending analogies about cars.  It's great your region fix works for you, but it doesn't work for everyone.  Your "fix" is appreciated and hopefully it works for people outside of the U.S.  But when you present it in a way that implies that nobody knows what they are doing except for you, you will annoy people In any language.

  • by tkdsouth,

    tkdsouth tkdsouth Nov 30, 2014 2:08 PM in response to Dan Woo
    Level 1 (5 points)
    Nov 30, 2014 2:08 PM in response to Dan Woo

    WWell said, it Downey work for me and I'm outside of the US I'm not sure if anything except possibly changing back to the way it was in IOS 7 will work totally. Let's hope enough people complain because atm we are just a drop in the ocean. I cannot be one of these people who will saying I'm going to another company as I like apple products but I am holding off buying anything new until they fix it.

  • by Delid4ve,

    Delid4ve Delid4ve Nov 30, 2014 2:15 PM in response to E-2043
    Level 1 (0 points)
    Nov 30, 2014 2:15 PM in response to E-2043

    II've actually had enough of this now, Apple should have acted on this by now and thy havnt. The iphone 6 is usable. The iphone 5 I will be returning to store this week for a full refund. iOS 8x has rendered this useless. It is unusably slow since the update and wifi is still not fixed. I waited over the weekend for an update as this is a major issue yet Apple still deny the fact.  I am now going to file a complaint with trading standards. It is not acceptable for this to happen and yet your employees still deny there is an issue.

  • by Stanky,

    Stanky Stanky Nov 30, 2014 10:24 PM in response to macfanta
    Level 1 (0 points)
    Nov 30, 2014 10:24 PM in response to macfanta

    macfanta wrote:

     

    Stanky, I'll reproduce here the Gazole post if you didn't read before.

    He is talking about BEACONS and LOCATION SENSORS FOR WI-FI.

    Don't use the word "ridiculous" so openly as you used. I told I'm not engineer or programmer, just read Gazole's post and used his focus on LOCATION/REGION theme to solve my issue. I didn't change any of his suggestions, I just verified that my Country settings at 5GHz band was changed to Mexico and turn to Brazil as the 2.4GHz band setting. It solves my issue that started after upgraded to 8.1.1

     

     

     

     

     

    Folks, as far as I see disabling Location services for Wi-fi as advised by some people here helps someone as Apple seems to have issues with 802.11d protocol implementation in iOS 8 http://en.wikipedia.org/wiki/IEEE_802.11d-2001 and Location sensors for Wi-Fi.

    Basically what 802.11d does is that it does not allow you to use certain channels on Wi-Fi in certain countries. As you can see from this table (http://en.wikipedia.org/wiki/List_of_WLAN_channels#5.C2.A0GHz_.28802.11a.2Fh.2Fj .2Fn.2Fac.29.5B17.5D) you can not use any channel you like while you are in US, some channels are not allowed in EU etc...

    What happens nowadays with lots of routers installed here and there is that some routers are sending 802.11d beacons and these beacons carry country code, but these country codes are not correct sometimes. So some router (most of those are made in China) broadcasts CN country code (which is China), iOS device sees this beacon and applies certain restrictions on channels it (iOS device) will operate. Thus some neighbour with such router might ruin your 5GHz 802.11n. If you have your router setup for US 802.11n channels (or set to Auto) and your iOS device see beacon from some other country earlier than same beacon from your router - you're stuck and your iOS device can't connect to your 5ghz 802.11n.

    How to check if this is an issue:

    if you're on Mac, start Terminal and run the command /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -s

    you will see the following response (list of networks our Mac see)

    SSID           BSSID                    RSSI    CH   HT   CC   SECURITY (auth/unicast/group)
      dlink178      1c:7e:e5:d0:df:хх   -65   1,+1  Y      RU   WPA(PSK/TKIP,AES/TKIP)
      hh245          cc:5d:4e:fb:8f:хх    -67   1       Y      TW   WPA2(PSK/AES/AES)
      Dread          00:22:90:90:07:хх -69   11      N     --      WPA(PSK/TKIP/TKIP)
      MajorWiFi   50:46:5d:cc:c2:хх  -41   6       Y     --      WPA2(PSK/AES/AES)
      sohc             f0:7d:68:9b:da:хх  -75   6       N     --      WPA(PSK/TKIP/TKIP)


    you can see in CC column that some routers broadcast country code, some not. Thus is I am in Russia and want to use Russian 802.11n channels I might face an issue as my neighbour's wi-fi router is broadcasting Taiwan country code.

    Why resetting network settings might help? Because when you do the reset, iOS device resets the country codes it seen before and if you're lucky enough - it will hear the correct 802.11d beacon from your network earlier than any other.

    To fix this particular issue you need to shorten beacon interval on your router from 100 (default) to let's say 75 (on my dd-wrt it looks like this)

    This will make your router to send beacon more often, so chances that your device sees your network earlier than others are higher.

    2014-10-07 10_44_02-clipboard01_801.jpg (JPEG Image, 584 × 357 pixels).png

     

    Another point is to enable 802.11d in your router if it is not enabled yet (it is not enabled if you see "--" in CC column in terminal output higher above)

    I spent lots of hours trying to figure out why my Macbook can't use my 5ghz 802.11n network until I found the great post about this (http://wifi-mac.blogspot.ru/2013/03/mac-os-x-5.html). All credits go this guy.

     

    It seems that Apple made a mistake with the priorities device gives to data it receives from location sensor and Wi-fi. So if Location sensor tells device that you're in US and 802.11d says you're in China, obviously Location sensor should be the trusted source which seems to be not the case with iOS 8

    I did not read this before and apologize for my ignorance.  I guess it's possible that this problem is now primarily occruring outside of the US, since this thread has become fairly quiet, so your recommenation may actually help others outside of the US.  Since I'm in the US, I can't change my Region setings, but i don't need to since 8.1.1 has ressolved  my Wi-Fi issue. 

  • by Baethe,

    Baethe Baethe Dec 1, 2014 6:40 AM in response to don_wan
    Level 1 (0 points)
    Dec 1, 2014 6:40 AM in response to don_wan

    I'm in the EXACT same position.

     

    IOS 8 killed bluetooth functionality, and the latest 8.1.1 killed wifi....

  • by London Lad,

    London Lad London Lad Dec 1, 2014 9:13 AM in response to Baethe
    Level 1 (4 points)
    Dec 1, 2014 9:13 AM in response to Baethe

    FWIW I run 4 x Cisco waps in a cluster (all the same SSID and PW.) It worked faultlessly for years up until ios 8.1.1 and now I have the PW rejection problem using WAP encription. Using WEP gets rid of the PW problem but it's now so slow at handing off from one access point to the next that I'm on 3G half the time and not connected to wi-fi at all. Up until 8.1.1 it handed off fast enough for me to conduct a Skype call wandering from wap to wap without interruption.

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