Q: iOS 8 Wi-Fi problems

i still dont understand why putting in a google DNS ipv6 address will stop the wifi from dropping

It doesn't. How the whole DNS thing got into this thread I don't know. But you are correct. DNS has nothing at all with iOS 8s inability to move data over wifi

Riddick187 had suggested changing DNS might improve stability of wi-fi

Whilst it didn't stop my device dropping out, the new setting gave me a noticeable improvement in speed

    Never said it would stop wifi from dropping... I said it would help performance.... Science is testing and observations... well stand there and do nothing... Smart people ask questions and know whats going on... Stupid people stand there and think they know whats going on... And you are???

And it did improve my iphone's performance - whilst it can obviously vary, I got an increase in download from about 26mb to 32mb.

Now if only Apple could sort the other issues........

Thank you... keep that number... Any new wifi you sign into. Or are using in other places....  Replace the slow DNS the provider gives you. the Google fiber has response time of 0.01 milliseconds... Fastest ive seen so far...  Then you only wait on your provider... Not Slow DNS and your provider....

oh ok that explains it.  i am happy with my DNS,  google works fine or overplay.  the speed of the lookup is fine its the fact i want a connection to my router that will allow me to be able to watch a show without having to ragequit after 10 min as i have had to reconnect to my wifi every 30 seconds.

DNS can not increase speed so much. It must be something else.

DNS lookups are done just to detect IP address of site/domain. Once downloading starts - then DNS does not come in picture for that domain. So speed increas from 24 to 32MB is pure coincidence.

Unless your old DNS was really very bad - you should not be gaining more than few hundred mili-seconds. i.e. a page which earlier took say 4 seconds will now take 3.5 seconds to load.

DNS does not make huge difference unless page is loaded with hundreds of images from different-different domains. In which case you make notice that page loaded faster. Otherwise if there are hundreds of images from SAME domain only 1st request will consume 0.5 seconds (or so) more. Rest of 99 images will come from browser's own DNS cache due to domain IP already being in cache.

my point exactly. hence the confusion in the earlier threads.

Yeah so back to the topic of this thread...

So 8.2 doesn't definitively fix wi-fi connectivity?  I guess I'm still sticking to 8.1.0  Through some unknown miracles, combined with changing out network hardware, combined with the tides and solar flare activity in some far away galaxy, I've managed to get 8.1 to have reliable connectivity 90% of the time.  But occasionally, out of the blue, it goes bat s$%t and I get the usual, "wifi credentials are lost/rejected", "dropped connection" etc. on 8.1 devices.  It eventually goes back to normal.

So how about this topic.. Did you even attempt the DNS? The one I posted??? If you are just here waiting for a iOS update to fix the problem... Then shut your mouth. Others have even said it helped performance. If your not going to try it... Then shut up and stop telling others it's useless. Just because you make assumptions and don't know what you are talking about... When you test it and see for yourself it improves performance or not?... Then you can run your mouth and comment... Because now you know what you're talking about... It's called integrity... Get some.

Oh I checked.  Google fibre ipv4 addresses are the 8.8.8.8 & 8.8.4.4.

I Don't think the issue is performance on DNS lookups. I think the performance issue is the way that Apple have setup the wifi drivers  on the device. whether  it is interference or error checking I don't know. Also Google DNS won't have any affect on people transferring files locally

the issue I have is I will have a full wifi connection then it will drop to nothing and disconnect.

DIfferent people have have had different fixes.  I thought I had fixed it with a static IP address but the issue is back. I am starting to maybe agree with Dan Woo and the solar flare activity. 

Ok last time. Run a DNS benchmark.. Find best IPv4 for your router and wifi... Use this Google fiber IPv6 DNS in your Apple products...

2607:f8b0:4004:802::1011

it don't matter if you have IPv6 or not.. It will help performance... 8.8.8.8 and 8.8.4.4 are not always the fastest DNS... Respon time about 40 milliseconds yet the Google fiber is 0.01

you tell me... You want to keep waiting for a DNS lookup? The time is small but it adds up as you surf... Just insurt it in your DNS in your iPhone or iPad or iPod. Get them all using the same IPv6 DNS... Use best results from benchmark for your router and wifi default DNS... Set both to both default DNS numbers... Don't use default one from your provider... They always give you slow DNS to save their network.

just try it... Then say it don't work... Don't comment on what you don't test... I mean my test... Not yours... Follow my directions... Then post.

Gonna struggle with that as my ISP does not route IPv6 out of my router yet. I am sure I can wait a few milliseconds for a lookup. 

Again the issues are not slow name resolution the issues are wifi signal dropping. If your issue is slow name resolution the. Your DNS fix will work but it will not fix the issue I have with my signal disconnecting. The other possable issue with "speed" could just be down to the slow wifi due to the issues Apple are having with the drivers.

Also DNS hotfix will not help local connections that have an issue like wifi sync.

i Accept that it may have sped up your connection as you keep saying.  I do not think there is one fix for all the issues until Apple start looking at the issues again.

Hey Riddick187, I did try playing with different DNSs when I had iOS 8 on my iPhone.  It didn't make any difference.  The Wifi connection still stopped moving any data a little while after each time I refreshed the connection. Just got the little wheel spinning with nothing happening.  I rolled back to iOS 7.1.2 and everything has been fine since.

I am not sure why you insist on folks playing with the DNS settings to fix/improve the WiFi data transfer problem in iOS 8.  I am guessing that you don't have this problem so you really do not understand what we are getting at here.  No one with this problem cares about saving a few milliseconds at this point, they just want to connect.

I agree that what you are saying may help the speed once you are connected to the web, but it has nothing to do with this thread.  You should probably start a new thread about how to increase your WiFi speed.