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Slow wifi in iOS 8?

Gaary said:
I've been having the same issue as described and tried many things to no avail. But I believe to have fixed it completely. I changed router from WEP encryption to WPA2, connection has been rock solid (20 mbps up and down) for about an hour now on all my iOS 8 devices that were having issues (iPad 3, iPhone 5, iPhone 6+). I hope this helps some if not all of you experiencing issues.
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I use WPA2 already, so I doubt that's it.

I've noticed that the Wifi range I'm getting had dropped dramatically. Looking at my router's diagnostic page, my iPhone's transmit signal strength is much lower than it used to be, which would make it much more susceptible to interference. I'm finding that my iPhone switches to the 2.4 Ghz band much more often than it used to as well.

I used the Wifi Sweetspots app someone posted in this thread and can see the speeds drop to nearly nothing at times when I'm not moving at all. It seems better if I'm right next to my router, but that wasn't necessary before.

I have similar problems with my work place's Wifi. There the Gmail app sometimes tells me I have no network connection and I have to press refresh to get mail to load.

My office's IT department had actually put out a warning against upgrading to iOS 8 saying that doing so would result in the loss of the ability to connect to the corporate Wifi. They put some kind of fix in for that, but it's still officially in testing.
 
Morac said:
I use WPA2 already, so I doubt that's it.

I've noticed that the Wifi range I'm getting had dropped dramatically. Looking at my router's diagnostic page, my iPhone's transmit signal strength is much lower than it used to be, which would make it much more susceptible to interference. I'm finding that my iPhone switches to the 2.4 Ghz band much more often than it used to as well.

I used the Wifi Sweetspots app someone posted in this thread and can see the speeds drop to nearly nothing at times when I'm not moving at all. It seems better if I'm right next to my router, but that wasn't necessary before.

I have similar problems with my work place's Wifi. There the Gmail app sometimes tells me I have no network connection and I have to press refresh to get mail to load.

My office's IT department had actually put out a warning against upgrading to iOS 8 saying that doing so would result in the loss of the ability to connect to the corporate Wifi. They put some kind of fix in for that, but it's still officially in testing.
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Been running iOS 8 for awhile without any wifi issues. Is you connection dropping or just slowness?
 
Installed on my iPad Air yesterday and Safari and wifi were almost unusable. All manner of problems. I usuall power everything off at night including my BT router and this morning everything is working fine. Slick and as good if not better than before the upgrade. Very strange but in a pleasant way!
 
KdParker said:
Been running iOS 8 for awhile without any wifi issues. Is you connection dropping or just slowness?
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Just slower than normal page loads with the occasional timeout, mostly loading web pages (Safari or apps), though when I added a mail account it took significantly longer than usual to download mail.

If I put my iPhone 5s running iOS 8 and iPad 2 running iOS 7.1.2 side by side and load web pages, the iPad load significantly faster except right after I boot up my iPhone or disable and enable wifi.
 
We have (2) iPhone 5S models and both are very slow on wifi on iOS8. The best example is when using Roomie Remote app. When I use Roomie to change channels on my Comcast cable box, the channel number is frequently not keyed-in quickly enough, resulting in the incorrect channel being selected due to the lag (i.e. if I try to switch to channel 759, sometimes the "9" doesn't get transmitted quick enough and I end up with channel "75" instead).

We also have (2) iPad Airs running iOS 8 and this issue is not present whatsoever using the Roomie app. Channels are keyed into the cable box much quicker with no lag. So the problem is definitely worse on the phones vs. the iPads for whatever reason. Same 5GHz wifi network, same location.

Also, none of these issues were present on any of our 4 devices under iOS 7.
 
After upgrading to iOS8 I found that Safari was slow or even paused too long. I shut down the app, then all other apps and did a hard restart.

Nothing has crashed since and safari is fine for me now.

Have you tried any of this?

Bobby
 
- iOS8
- iPad Mini with Retina
- Airport Extreme 802.11ac on 2.4GHz and 5GHz (same SSID)

Range has dramatically reduced with iOS 8. I often lose connection just one room away now. Moving directly next to the router fixes it. I think there is something wrong with the speed negotiation or otherwise.
 
I'm having slow wifi issues too, both at home using a BT Home Hub 5 and at my mum's using a Linksys X3500. I'm using a 5S and an iPad Air. In both houses I use the 5Ghz network.

I've tried Resetting Network Settings and using the 2.4Ghz band, I'll see if that helps. If so, I'm guessing it's an iOS 8.0 bug with 5Ghz wifi.
 
My WIFI is slow as well compare to iOS 7. Everything loads so slow and/or gets stuck loading. Very irritating. I can handle other iOS 8 bugs but this is really getting me mad.
 
My iPad Air which has been updated to iOS 8.0 as well as my iPhone 6 Plus both seem to be fine regards Wi-Fi both upstairs where the router is and downstairs.
 
Slow wifi in iOS 8?

Here's a good example of the problems I've add since updating to iOS 8 on my iPhone 5s. Microsoft is giving away 30 GB free in OneDrive if you enable camera upload. I did so on my iPhone and it said it was uploading 59 photos. While it was uploading I enabled the same thing on my iPad 2 running iOS 7.1.2. It had 239 photos.

My iPad finished uploading first. The OneDrive app kept periodically telling me it paused uploading because I wasn't connected to Wifi despite the Wifi symbol showing on my iPhone. A little while later it would start uploading again and less than half the speed my iPad was uploading at (and the iPad was done uploading).

I had to put my iPhone next to my router to get it to upload consistently at a decent speed.
 
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For what it's worth I contact Apple support and chatted with a "Senior" care specialist who basically told me to restore my iPhone 5s as new and if that doesn't fix it, that the hardware needs to be swapped since he hasn't seen the problem on his iPhone running iOS 8.

That sounds absolutely wrong to me. How can all these devices have bad hardware?
 
Both our iPad Airs exhibited the same slowdown on WiFi after upgrading to iOS 8. After much testing, it looks like it's a problem with connecting via the 5 GHz band. When I switch to our 2.4 GHz band (5th Gen AEBS, configured with separate SSIDs for each band), all is well. Also, the bit rate shows the slowdown. When first connecting to the router, it'll show 300mbps, but in just a very short time drops dramatically - below 50, and never recovers. While in that state, switching to the 2.4 GHz band immediately fixes the problem.

I just restored my iPad Air to 7.1.2 and 5 GHz band works like it always has. It connects showing 300mbps, and stays near that during use. Internet connection speed is back to normal.

Our iPhone 5s' seem to work fine on the 5 GHz band. One possible hint to a cause (for the Apple engineers) might be that the Airs are 802.11n w/ MIMO, whereas the iPhones are not.

Morac: From what I can see from these tests, it is not a hardware problem. My Air, again running 7.1.2, is back to its former performance. From an engineers (my) standpoint, it doesn't make sense either. The only way that I can see where it could be "hardware" related, is if the bug arises from support for new wifi h/w in the iPhone 6's.
 
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I reverted back to 7.1.2 on my iPhone 5S and everything is running good again. The problem isn't in the hardware of my phone, but in iOS 8.
 
Slow wifi in iOS 8?

Well I did a restore and set up as new since I've had other problems and figured I'd give that a try. Everything was really fast after that. Pages loaded nearly instantly in Safari, though I only tested a few minutes. Also the 10 second black screen I got on start up was gone.

I decided to restore my backup and now I'm back to where I was, hit or miss network performance. At times it's really fast, other times I drop off the network briefly. The 10 second black screen also came back. Maybe I have too many apps or something. I have 344, which is why I don't want to set up as new.

For me 5 GHz works, but not reliably from the same distance as before.

One of the things the senior Apple engineer said is that Apple doesn't support dual band, which is ridiculous as that's one of the bullet points for both the iPhone 5s and 6/6+. He also blamed WMM.
 
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Safari runs slow on WiFi and LTE for me.

Loading pages just takes awhile. The bar at the top will be about a quarter of the way through, stay there for 5 seconds while not loading any of the new page, then finally load it.

I guess I'm so used to Safari loading pages quick that even when it hangs for 5 seconds every single time a page loads, it becomes a pain in the ass.

This is a pain in the ass.
 
Update (more testing). Just for "fun", I checked my 5GHz wireless setting (5th gen AEBS) and saw I had it set to a fixed channel, 153. Keep in mind, this worked fine for ages, and using iOS 7.1.2. Somewhere in the back of my head I remembered seeing someone who had some success with changing the setting to "Automatic". So, why not? Well, it worked! (For me anyway.) My iPad Airs are now (again) stable at or near 300mbps. The automatic setting chose channel 149, so I manually set it - that also worked. Back to 153 - no good. 161 sort of worked. Back to automatic and all seems ok.

I think my theory of the difference between iOS 8 and iOS 7.1.2, having to do with MIMO and 802.11n still holds. Something in how they are using multi-streams seems to be different.

I'm not sure I would consider switching the 5GHz channel selection to automatic a "workaround", but it's borderline. If all was well with static channel (153, in my case) before the upgrade, I wouldn't expect it to change.

If setting the 5GHz band channel selection to automatic doesn't work for you, then there's still the option to use 2.4GHz. For right now, at least, I'm going to give it a go with the AEBS set to automatic. The iPad Airs seem to work fine – now.
 
I'd tried rebooting my router, resetting network settings, etc etc. I finally gave changing my encryption from WEP to WPA2 A try and it's completely fixed the issue. I went from .2Mbps downloads to 20+ Mbps. Been flying along for a few hours now.

If it helps anyone else I'm on a 128 gb iPhone 6 using Verizon fios and their router.

Good luck!
 
I was having glitchy Wifi on both 2.4 and 5 Ghz. I changed the channels I use for both and that seems to have stabilized things, though my iPhone 5s isn't getting the range it used to. It's about 80%. I only tested this for about 10 minutes. I'll need to see if the stability holds over the course of the next few days, but pages were loading quick in Safari when I did test.

What's odd is that the channels I picked are being used by my neighbors. The channels I was on were more or less free. I have no idea why that would work.

2.4 MHz has always been a bit flaky since there's like 11 networks showing up, which is odd since I live in a townhouse, not an apartment building. I only have 2 neighbors and no one lives behind me. That's why I prefer 5 Ghz which was working great up until the 8.0 update.

If the problem returns, then my guess is that there's a software glitch (as opposed to a driver glitch) where iOS isn't giving enough resources to WiFi. That would explain why setting my phone up as new with no iCloud or anything worked great.
 
there is nothing you can do to fix this. reset network, reset router, all dont work. because my old iphone 5 with 7.1.2 is just fine, but my iphone 6 and my retina mini (iOS8) have the problem.

wifi signal is showing, but connection seems flaky, sometimes like connection timed out, doesnt respond page loading in safari, a restart fixes this but it will come back again in no time.

hope apple will release a fix in 8.0.1 as soon as possible because this sucks.
 
Slow wifi in iOS 8?

What about us folks who are not very techie and can't mess around with router settings? Sure hope iOS 8.0.1 fixes the internet issues. Isn't so much of an issue using different apps that use the Internet. Most specifically affects Safari web page load times.
 
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