iOS 11 WiFi dropping

Not sure this is happening with anybody else but after updating to iOS 11 my iPhone 7 plus started to drop the WiFi signal constantly. Sometimes it keeps asking to enter the WiFi password again.


Interestingly, this happens at a spot where my Macbook works perfectly connected to the same WiFi. I haven't changed router, settings, didn't move furniture, etc. The infrastructure is exactly the same, the only difference is iOS 11 running on my iPhone.


Anybody?

iPhone 7 Plus, iOS 11

Posted on Sep 26, 2017 5:08 AM

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Posted on Nov 17, 2017 10:17 AM

I got in touch with Apple support which, after some tests, indicated to me that the possible cause was software installed. So I restored the iPhone as new and found that the wifi problem has disappeared! Now I'm installing the applications I really need! So far everything is ok !!!

I hope it helps!

287 replies

Jul 2, 2018 4:45 PM in response to fpmalard2017

I have solved this problem by creating different names for 2.4Ghz and 5Ghz bands on my access point. Set the phone to connect to the 5Ghz point SSID and the issues are gone. Halved my mobile data consumption, not to speak of the better experience when home.

There seems to be a bug in Apple's code that causes hangups when switching between the bands that have the same SSID.

They got rid of Airport gurus so I guess only workarounds for us now.

Oct 16, 2017 12:58 AM in response to Cdubya52

I was having the same issues.


However after playing with some settings on the settings page on my iPhone with the router I wanted to connect to (renewing lease, turning the phone off and on, resetting the WiFi router), I found that if you click the actual router name, there is an option for ‘auto join’.


For me this has worked since, so when the iPhone is in standby it doesn’t just drop.

Nov 23, 2017 4:29 AM in response to fpmalard2017

Hi guys,


I have the same problem on iphone and ipads on ios 11 especially on 5ghz bands, i have a support contract with cisco (im using their enterprise wireless) they looked at all the logs and it all points back to ios 11 as an issue. They said if i had a enterprise support contract with apple they could open a ticket with apple but i dont have one. Cisco tac told me they are seeing lot of issues with Ios 11 and customers using it on their enterprise cisco networks.


In the mean time ive had to create a 2.4ghz only ssid to get some stability on ipads and

iphones.


So my advice to apple is to work with cisco and get your products working better as this shouldnt be happpening.

Jan 6, 2018 6:45 AM in response to fpmalard2017

HI!

I've had issues since updated to iOS11 (I'm on 11.2.1 now, current), that never had previously on iOS10 that worked like a charm in my iPhone7. My only rant about iPhone7 is that the paint chips of, and it is not mechanical... Anyway, getting back to iOS11, I had problems with my Apple Watch3 (it would not connect to any wifi by itself... I only could use it teetered to the phone), battery (prior iOS11 it lasted a whole day, at least, but on iOS11 I have to charge it twice a day, most days), WiFi dropping (it is not router related, it dropped on ny router).

Due to trying to solve my Watch issue and trying to not have to send it to USA (I've talked to three Apple senior advisers but with no solution, and they scaled my problem to engineering), I've backed my iPhone and Restored it, but setting it as a new phone (restoring the backup never solved the Watch issue). And voilà! The Watch started to connect to any Wifi, not only that... dictation begun to work as intense (didn't worked before), and even I've noticed that the watch setup app showed me options that I've never seen before while setting Watch up.

I can't tell you what a PITA is to restore manually all your data (specially while you carry some of it since IPhone 3G).... the closed ecosystem doesn't helps you on this regard... You'll find that iCloud Photos is useless, etc. Google Photos worked perfectly while backing up photos and then restoring them to the iPhone! And its great!

And surprisingly, it seems it is eating less battery, and wifi is not dropping anymore, at least for the past two days... and thats a lot!!!

It is sad that Apple turned out to such a ton of garbage, software wise.....

Hope my experience helps (although I know it is not easy or even possible for most people to do what I did).

PEACE.

Jan 8, 2018 1:40 PM in response to vincentfromelsesenham

My phone now is working properly and with good battery life, not disconnecting from wifi, Watch3 set up correctly, etc....after making a restore and not let it restore the backup... set up as new phone... I guess it got rig of anything could be conflicting... I've explained all my issues some post ago... cheers!

PS: din't tried the new iOS update that seems to be rolled off... I'll wait anyway... I don't trust apple anymore.

Feb 3, 2018 2:14 PM in response to fpmalard2017

I have the iPhone 6+ and it has been disconnecting from WiFi and goes to the cell site and then back again every time I wake it up. Very frustrating and time consuming. No problems with my 5s phones or iPads. I finally called apple tech support. I was told to back up my phone to the cloud or computer. Disable find my iphone. Completely reset my phone and then instead of backing up from the cloud (my back up) I set it up as a new phone. It then asks for your iCloud email and password. After entering that, my phone didn’t loose WiFi connections any longer! It didn’t however completely reload all of my apps, photos, email, etc. I then reset my phone and THEN backed up to my previously saved iCloud backup. My phone still works! I have been putting up with this for months and never saw these details on this forum. For me, problem solved! Yay!

Feb 4, 2018 10:36 AM in response to fpmalard2017

Woo Hoo!!

I finally was able to resolve this issue.

I communicated with Apple support, they have collected the diagnostics data from my iPhone, but they couldnt figure the issue.

they asked me to head to apple genius bar, they couldnt figure the issue.

The decision was to replace my iphone!!

After replacing the iPhone I noticed to have the same issue!!

****!!

have looked into many articles over the net, tried all posted resolutions, nothing did work!!

Until I started playing in the settings and tried different method from my head, I finally was able to find a resolution!


SIMPLY, GO TO THE NETWORK SETTINGS CLICK/TAP/TOUCH ON THE CONNECTED NETWORK

TURN OFF => AUTO-LOGIN


Hope that will work for you!!


Feb 19, 2018 11:56 AM in response to mdaaron

See this issue on 5GHz only SSIDs too, so this does not appear to be related to 2.4GHz channels 1,6,11 channels only. That being said, 2.4GHz channels outside of 1,6,11 should never be used. If the fix for you all on older 2.4GHz (802.11b/g/n) technology is to move to a channel that should never be used in the US (i.e. channel 9), there are some serious engineering issues at Apple. I think they were trying to get you to not use channel 6, but should have never advised use of channel 9... There are some other long standing Apple best practices, outside of not using channel 6, such as:


- create a 5GHz only SSID, SSID that has 2.4GHz disabled. This prevents jumping back between bands and 2.4GHz typically works very poorly as compared to 5GHz in dense WiFi deployments (businesses, apartment complexes, high rise city buildings). 2.4GHz can travel further and better through numerous walls, so use may be needed in some larger residential deployments with too many walls or other RF obstacles in the path.

- Make sure TKIP and AES and not both enabled. TKIP is a deprecated security protocol, and enabling both on an SSID has been known to cause issues with Apple products. TKIP should never be used, with or without AES

- If you are able to do step one, creating a 5GHz only SSID, move everything possible in your home network to this SSID. This will enable better support to devices that only do 2.4GHz, i.e. gaming consoles and other devices still build on the older 2.4GHz technology.

- Try disabling "band steering" on your 5GHz, if your WiFi device is high-end enough to have this feature. This is a process that tries to force dual-band (5GHz and 2.4GHz capable) hardware to the 5GHz channel. The issue is that it sometimes has adverse impacts on 2.4GHz only devices.

- Disable channels 5GHz 149 and 153 if your wireless supports these.

Nov 17, 2017 8:19 PM in response to just4paws17

I’m having the same problem where my WiFi connection keeps dropping when I’m in my room. I never experienced this problem before as my WiFi is always in range.


In fact I busted my data by 3gb because it automatically turns to 4G for a better connection when the wifi is weak. My iMac and my other devices are all in the exact same location with strong signals. Doesn’t explains why my iPhone is getting weak connection.


I tried disabling my cellular data and my WiFi connections seems to be stable. I’m suspecting it’s an interference from the 4G connection that intercepts my WiFi connection. Seems to be the case for this iOS 11 update. I never hadn’t this problem with the previous ios10 versions.

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iOS 11 WiFi dropping

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