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 Delid4ve,

    Delid4ve Delid4ve Nov 21, 2014 7:12 AM in response to Dan Woo
    Level 1 (0 points)
    Nov 21, 2014 7:12 AM in response to Dan Woo

    I don't believe this is the case as it is literally a change of: iphone 5 - 1m away its connects - 2m away incorrect password.  iphone 6 - the incorrect password error occured in the office at 6.5m away from the n66u, havn't tested at home yet.  Looking through everyones rage etc online it seems to have the most affect on the 5 and 5s models (these are the ones that are experiencing the password error the most).

     

    When I originally was trying to identify the the cause I tried every wifi combination in the N66 aswell - fault testing was carried out on the iphone 5 as this was the one with the incorrect password.- every control channel, above and below extended channel, 20mhz only 40mhz only and both, WMM, Multicast etc etc, nothing made the password error resolve.

     

    Although the 5ghz drops in and out (only one other 5ghz ssid showing at home) it does connect.  the SSID is different to the 2.4ghz SSID but have the same password, it has also been tried with different passwords and SSID names.  It also says incorrect password if I set up a guest network as well.  There are 4 other strong SSIDs on the 2.4ghz band within my house (not ours) - a PS3, Virgin, BT wifi (whichs broadcasts from BT customers routers as an access point for every BT customer), a BT homehub and a Sky router.  The virgin router is also the advertised 5ghz band.

     

    Using inSSIDer I isolated the channels of each other access point showing - they were all common 1,6,11.  My router was originally set to auto when noticing after the update (never had issues, the ASUS is pretty good at auto selection) but all have been tried since.

  • by Delid4ve,

    Delid4ve Delid4ve Nov 21, 2014 7:22 AM in response to djmcwill
    Level 1 (0 points)
    Nov 21, 2014 7:22 AM in response to djmcwill

    All the iphones in UK are GSM - no CDMA

  • by Dan Woo,

    Dan Woo Dan Woo Nov 21, 2014 7:59 AM in response to Delid4ve
    Level 1 (4 points)
    Nov 21, 2014 7:59 AM in response to Delid4ve

    this inSSIDer utility...is this a pc based app?  I'd like to be able to check all that info for APs around me.  Interesting too you guys are seeing the lost wifi credential issue a lot on the iPhone 5. That's one device I've never tried debugging with. I've seen it with the 6, but not that much.

  • by Delid4ve,

    Delid4ve Delid4ve Nov 21, 2014 8:02 AM in response to Dan Woo
    Level 1 (0 points)
    Nov 21, 2014 8:02 AM in response to Dan Woo

    yes it is:

     

    http://www.techspot.com/downloads/5936-inssider.html

     

    only works with certain wifi adaptors - alot of realtec chips are not supported.

  • by Dan Woo,

    Dan Woo Dan Woo Nov 21, 2014 8:18 AM in response to Delid4ve
    Level 1 (4 points)
    Nov 21, 2014 8:18 AM in response to Delid4ve

    Ahh I'm too cheap to buy it. I just found a freeware app NetSurveyor that has similar features.

     

    I notice at work now about 20 SSIDs all on ch 1,6 or 11.  Interesting data...not sure how to interpret it all. Can't wait to see what I get at home.

  • by Delid4ve,

    Delid4ve Delid4ve Nov 21, 2014 8:37 AM in response to Dan Woo
    Level 1 (0 points)
    Nov 21, 2014 8:37 AM in response to Dan Woo

    The home version of Inssider is freeware

  • by Andros tempest,

    Andros tempest Andros tempest Nov 21, 2014 9:08 AM in response to Iangt
    Level 1 (0 points)
    Nov 21, 2014 9:08 AM in response to Iangt

    Changing the chanel was a suggestion made years ago when there were problems connecting ipad and ipad mini to ios6 I attempted using chanel 9 and chanel 7 but with hardly any difference in connection issues.  The upgrade to ios7 eliminated most of my connection problems, so i left the chanel at 7 but if other users have switched to something else AND IT WORKS then I will have another play.

     

    Your comment that rival local signals affect connectivity seems to be correct, as when my neighbour is on their wifi ALL my devices experience momentary drops in connection, but only the apple products then disconnect and refuse to log back in.

  • by Scottyboy99,

    Scottyboy99 Scottyboy99 Nov 21, 2014 10:16 AM in response to Andros tempest
    Level 1 (84 points)
    Apple Watch
    Nov 21, 2014 10:16 AM in response to Andros tempest

    WWhy did apple have to mess with it, all these 'under the hood' changes have just caused carnage. They should of left what worked well alone but they just have to tinker. All I can see of ios 8 is no real change apart from useless health apps and apple pay (which I can't use in UK or 5s anyway). All that for a truck load of bugs. Ios 7 was a great and reliable ios - it wasn't perfect but it was a million times better. I only got ios 8 because at the time I wanted the apple watch which I guess will be ios 8 only. But now I won't bother after the experience of ios 8. The wifi code should be regressed pure and simple but they are too arrogant for that. Whilst I don't cop much in the way of drop outs (although it does happen sometimes) my throughput is erratic and I am convinced it's linked to control centre and AirPlay implementation in the iPhone. On iPad its okay but not on my 5s. Throughput drops by two thirds quite a bit and apps using wifi stall or go slow UNLESS I swipe control centre up and select AirPlay icon to view devices and then swipe control centre back down. Then immediate recovery to full speed! Although it only lasts a while and speed drops can come back at anytime whereupon same trick works again. That's a bad bug and although I highlight this to apple care they play dumb and don't respond. I think AirPlay implementation is at the root of the cause, sometimes I join my home wifi and they are slow to even pickup and announce themselves in control centre. It's intermittent really, sometimes instant or a long delay. and these aren't even third party AirPlay devices, they are Apple TV and airport express to give me AirPlay to the hifi. Very very frustrating. Clearly QA testing was lacking. I bet they barely did it and even then it was on limited devices in perfect scenarios. I guess it would not dawn on them to try creating a network environment using different routers and with AirPlay devices all running. Their simulations prob only focused on their router and prob just the latest iPhones or iPads. I pine for ios 7, it was actually really good but this ios has bodged so much up

  • by JayZeeTIO,

    JayZeeTIO JayZeeTIO Nov 22, 2014 1:02 AM in response to Scottyboy99
    Level 1 (0 points)
    Nov 22, 2014 1:02 AM in response to Scottyboy99

    iOS 8.1.1 has caused me all sorts of problems so much so that if I want my WiFi network to work without dropping connections on all other devices hooked up to the network, I have to put my iPhone 5 and iPad Air in airplane mode. I spent so much time on the phone to my ISP when it turned out to be an iOS issue. iOS 8.2 had better sort this out. 

  • by David Wilkinson6,

    David Wilkinson6 David Wilkinson6 Nov 22, 2014 4:36 AM in response to E-2043
    Level 1 (19 points)
    Mac OS X
    Nov 22, 2014 4:36 AM in response to E-2043

    iOS 8.1.1 has definitely not fixed the wifi iPad problem I am experiencing.   This problem occurred immediately after installing ios 8.  I have a house full of Apple products and the problem exists with connecting to Airport Express base stations 1st series and 2nd series as well as to Airport Extreme Base Stations.   There is no problem with non-apple routers.

  • by rogerdn,

    rogerdn rogerdn Nov 22, 2014 5:23 AM in response to David Wilkinson6
    Level 1 (0 points)
    Nov 22, 2014 5:23 AM in response to David Wilkinson6

    David, I had initial wifi connection problems (and fixed by resetting my network, however that does not seem to work for many) but I also have Apple Extreme and Express boxes and has since worked fine so i doubt that's the problem.

  • by jsaidoo,

    jsaidoo jsaidoo Nov 22, 2014 10:07 AM in response to E-2043
    Level 1 (0 points)
    Nov 22, 2014 10:07 AM in response to E-2043

    I am facing similar WiFi issues rendering my iPad pretty much unusable. My wife and I have identical ipads, except I upgraded mine to IOS 8.  sitting side by side connected to the same SSIS, hers gets 35 Mb down and mine is 0.75. If I move just a few centimeters, I get no internet and, like others, any attempt to reconnect gives me an invalid password error. I made a crappy YouTube video showing the results, but Apple doesn't seem to care, they have my money already.

  • by Dan Woo,

    Dan Woo Dan Woo Nov 22, 2014 11:40 AM in response to jsaidoo
    Level 1 (4 points)
    Nov 22, 2014 11:40 AM in response to jsaidoo

    I honestly think they do care, but there's a corporate policy to never admit to or discuss any problem publicly . That's the rather infuriating issue.  They are looking at these threads and have contacted some people to try and nail it down....me included.  These last couple releases were likely planned a while ago And may not even include any attempt to fix it. The solution to this bad wifi issue probably won't be out for a bit.  I agree it really stinks and HAS to have a negative impact on them. I have Android phones too for work and I prefer iOS. But my apple preference has been shaken a bit.   Anyway im one of the lucky ones that managed to fix the problem through network hardware and messing with configuration.

  • by Scottyboy99,

    Scottyboy99 Scottyboy99 Nov 22, 2014 12:03 PM in response to Dan Woo
    Level 1 (84 points)
    Apple Watch
    Nov 22, 2014 12:03 PM in response to Dan Woo

    MMaybe they do care but they certainly don't give the impression. They are their own

    wworst enemy. Why did they see fit to mess with the wifi in the first place. It was fine in ios 7. Why try and fix what wasn't broken. That's what drives me mad with them. They keep tinkering and throwing out annual new iOS. The release cycle is too frequent for proper QA testing. They should admit defeat and regress the wifi code to what was in ios 7.1.2 in their next ios 8 update

  • by David Wilkinson6,

    David Wilkinson6 David Wilkinson6 Nov 22, 2014 12:03 PM in response to Dan Woo
    Level 1 (19 points)
    Mac OS X
    Nov 22, 2014 12:03 PM in response to Dan Woo

    25 years of Apple usage and I have never felt like this before.   Whenever there have been glitches, I have forgiven them because they were fixed really quickly.    I think they have had time to fix this and the policy of no admission has a shelf life after which you have to come clean.   The only advice I have ever given over domestic IT is "buy Apple."   No longer.

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