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Wi-Fi not working on iOS 8.4

Hi,


I had problems on iOS 8.3 where Wi-Fi worked at the beginning, but then stopped. Sometimes iPhone 4S attempted to connect, I saw wifi icon and then it disappeared. I tried Reset Network Settings, I managed to setup Wi-Fi connection again, but it worked for a few minutes and then again the same issue.

I was hoping that the issue will be fixed on 8.4, but now it's worse. After resetting network settings I cannot even join wifi network. After entering password, it says "Unable to Join the network. I have correct password, because I'm using it for other devices.

I tried to restore iphone through iTunes, but I cannot do that, because I'm getting error message "Find My iPhone" must be turned off. The problem is that I cannot turn Find My iPhone off in iCloud settings on the device, because Wi-Fi is not working. Now I cannot restore iPhone and I cannot setup Wi-Fi.


Another issue is the fact that device may not have 8.4 installed. Although it reports version 8.4, the device didn't show locked screen after update, like it did on iPad. It seems that device only shows version ioS 8.4, but hasn't really been updated, otherwise I would see locked screen after restart.

Is there a way to force iOS 8.4 update again on the device?


How can I fix wi-fi problem? Wi-Fi scanning seems to be a little slow. On that page the device often freezes for 20 seconds or so. The quality of iOS and Mac OS X has gone down dramatically.


I have $800 iPhone 4S, which has the antenna problem and I don't think I want another Apple device, if I can get Android device with better spec than iPhone 6 for $200. Over 3 years I made around 50 calls with this device and I'm not using much. I'm just using password manager app and need wifi for sync and backup.


You know what, forget this, because no one is going to fix/revert wifi code back to what it was on 8.0 or older.

MacBook Air (13-inch Late 2010), Mac OS X (10.7.2)

Posted on Jul 1, 2015 4:00 AM

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Posted on Jul 1, 2015 9:09 AM

iOS 8.4 with broken wifi also drains battery. In 3 hours battery capacity dropped from 100% to 73% (loss of 27%).

I recommend users who experience wifi issue to completely disable wifi until Apple fixes the problem. It looks like device is occasionally scanning wifi networks while in sleep mode.


After you disable wifi, avoid enabling it again or even navigating to the wifi settings. The device may freeze. In that case you need to press and hold power button and home button at the same time. When the devices shuts down, power up again and don't try to change wifi setting, leave it off.


I think the device must be doing something on the background that causes high CPU usage, device slows down and after a few ore seconds it freezes completely. Clearly some multi-threaded deadlock in wifi or networking routines.

210 replies

Jul 4, 2015 6:55 AM in response to Csound1

Lol. At this point, I'm thinking my next phone will be made by Samsung or LG. Give me a stable OS over an unstable OS with a bunch of updates, please. I'm not as mad as I was the other day, but I'm still pretty annoyed. Apple needs to step up their game & realize that the more complex they make their devices/software, the more unstable it will become.


Apple, please please please go back to simplicity!

Jul 4, 2015 7:26 AM in response to Csound1

Before you go to an Apple store or authorized re-seller, try making sure that you are consistently using the same DNS addresses in all devices. This resolved my issue. I used Googl's DNS addresses which are 8.8.8.8 and 8/8/4/4 in all of the following:

  • Netgear DSL modem
  • AirPort Extreme
  • All iOS devices (iPad 2, 5g iPod touch)

As soon as I did this WiFi immediately began to work.

Jul 4, 2015 8:06 AM in response to Frank Lowney

I have an iPad 2.

After updated to iOS 8.4 two days ago, now it's facing the same issue, Wifi disconnected and unable to join back to the same Wifi network;

I tried to join to 5G wifi network on the same router, it's also failed.


After tried to forget the network to rejoin the network again, it kept responding "Incorrect password for...". I did Reset Network Settings it still didn't work.

I tried to change my router's DNS setting to Google DNS servers as recommended. After that, all attempts to join Wifi network were still failed; however, by luck, I tried to join to the 5G Wifi network, it's suddenly work fine... for now.

Not sure how long it will work this time.

Jul 4, 2015 3:04 PM in response to davemegan

davemegan wrote:


Hi Frank,


Any idea on what to do if your phone won't even find the network? My ipad still finds it so does our 2 laptops just not my phone

That symptom is a new one on me, at least for this particular issue. You wouldn't have Airplane Mode turned on or WiFi turned off, right? The network isn't hidden, correct?

Failing all that, your iPhone should remember the network or at least detect it so that it can be selected manually.

Jul 4, 2015 6:02 PM in response to Frank Lowney

Had screen freeze issues along with wifi issues. Updated IOS 8.4 via iTunes twice, reset network twice (including rebooting of modem and router) and reset phone several times. Nothing worked until I disabled Find my iPhone. Then, slowly screen began to function and wifi began to be detected again after the phone being locked up for two days, useless.

Enabled Find my iPhone and the phone started to freeze again. Disabled again...Now, the iPhone is working again.

Made an appointment at the Genius Bar, but if there are no more issues with the Find my iPhone off. I will wait until there is an IOS but fix.

Jul 5, 2015 12:22 AM in response to Frank Lowney

Hi Frank,


No the phone wasn't in airplane mode altho I did try it just in case that worked. The network isn't hidden but is password protected. All other devices (2 laptops, windows 8 phone, samsung galaxy and ipad) all had no issue. Tried to set it manually but it just said it couldn't find it. Also reset the network setting on my phone but nope nothing worked. Got home and it picked up the one here no problem so I have no idea why it had a problem at the bach.

Jul 5, 2015 6:15 PM in response to steve.mccormick2

steve.mccormick2 wrote:


Are you serious? There are multiple threads, with many different users with multiple types of devices that worked perfectly fine before upgrading to iOS 8.4. Now we are having wifi connectivity problems. Why would you suggest taking the hardware to an Apple Store?

Are you serious? A suggestion was made to assist the OP in resolving the problem and you want to start a debate.

Jul 5, 2015 6:22 PM in response to RobertDeveloper

If it has NEVER been jailbroke, here are some standard repair procedures:


First, try a system reset. It cures many ills and it's quick, easy and harmless...

Hold down the on/off switch and the Home button simultaneously until you see the Apple logo. Ignore the "Slide to power off" text if it appears. You will not lose any apps, data, music, movies, settings, etc.


If the Reset doesn't work, try a Restore. Note that it's nowhere near as quick as a Reset. It could take well over an hour! Connect via cable to the computer that you use for sync. From iTunes, select the iPad/iPod and then select the Summary tab. Follow the on-screen directions for Restore and be sure to say "yes" to the backup. You will be warned that all data (apps, music, movies, etc.) will be erased but, as the Restore finishes, you will be asked if you wish the contents of the backup to be copied to the iPad/iPod. Again, say "yes."


At the end of the basic Restore, you will be asked if you wish to sync the iPad/iPod. As before, say "yes." Note that that sync selection will disappear and the Restore will end if you do not respond within a reasonable time. If that happens, only the apps that are part of the IOS will appear on your device. Corrective action is simple - choose manual "Sync" from the bottom right of iTunes.


If you're unable to do the Restore (or it doesn't help), go into Recovery Mode per the instructions here. You WILL lose all of your data (game scores, etc,) but, for the most part, you can redownload apps and music without being charged again. Also, read this.

Wi-Fi not working on iOS 8.4

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