iPhone keeps disconnecting from WiFi

It seems that my 6S running iOS 11 will frequently disconnect from my home WiFi. When I go into the first settings page to see what's up, it will show that no WiFi is connected I then have to go into the next page to see the list of Networks and then have to choose my home network. Eventually, when the phone is sleeping, it will disconnect from WiFi. Anyone have any ideas?


Thanks in advance.

[Re-Titled by Host]

iPhone 6s, iOS 11

Posted on Sep 25, 2017 6:54 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 4, 2017 11:46 AM

You've probably tried this but if you haven't go into the WiFi settings and find your connected router. Tap on the littie i next to the router's name. First make sure that Auto-Join is turned on. If it is make sure that configure IP and DNS are set to Auto, unless you use a static IP and DNS. After checking all that, I would then tap on Forget This Network at the top of the page. I would then restart the phone and at the same time, reboot the wireless router. Once both are fully rebooted, go back into the Settings>Wi-Fi and tap on your router. You will need to reenter your router password and then join. Again, after you have rejoined that you tap on the little i again and make sure Auto-Join is turned on and configure IP and DNS are set to auto.


If all else fails, you may need to see if your router has a firmware update available.

56 replies

Feb 4, 2018 5:30 PM in response to Hisham.B

Actually i tried this already in older IOS version like 9 and 10. It didn't help. Yesterday I upgraded my phone to 11.2.5 and fortunately your trick works.
I realize that this issue just happen with wireless which have captive portal authentication. It my environment, user must login via the authentication portal everyday. If we turn off autologin it won't pop up the portal automatically. Anw, i'll tell user try that trick. And when they want to login, just turn autologin on, and then turn it off after connected. Thank you.

Mar 7, 2018 5:36 AM in response to Gator5000e

I have the very same problem with my iPhone and my iPad. I am in contact with Apple support. I am able to reproduce this problem by pressing the power button. After a few seconds of standby, the WiFi connection is gone. This is not a problem with the router.
a.) It is reproducable in other environments

b.) Other devices (non iOS) remain connected

The problem exists with 5GHz as well as with 2.4GHz.

For testing I have turned auto-reconnect off.

It seems (but I have to test that again to confirm) that open WiFis (w/o WPA2) are a lot more stable on iOS devices.


Cheers,


Clifford

Jan 4, 2018 12:41 PM in response to PCjoy

I am having the exact problem with my iPhone 6S Plus forgetting my home wifi password and dropping wifi and forcing me to re-enter to reconnect.


This also is happening on my 5th gen iPod Touch and my 1st gen iPad Pro 12.9 inch.


In addition, my iPod battery is going bezerk and either running down in a few minutes or the screen gives the red “BatteryLow” warning. But when I plug it in to charge, it has 80% or more life.


Simiarly, my iPad Pro battery no longer charges. AT ALL with the square 5-watt charger that CAME WITH IT. It ONLY takes a charge with a $25 Apple 12-watt rectangular charger I had to buy separately.


ALL these problems appeared after I “updated” IOS to 11.2.


Please. Fix.

Feb 12, 2018 4:15 AM in response to rolandredd

Please check your wifi network is selected as home network or public network

1) If it’s selected as home network then it will not get disconnected after a network reset

2) if it’s selected as public network as per IOS a safety feature and battery saver option kicks in which allows the wifi to connect only when you are using your cell.

Hope it works

Regards

Khurshed

May 13, 2018 9:15 AM in response to Gator5000e

Hi

I believe this is an issue with the new update. Never had any such issue but only post the new update 11.3.1 that I have been facing similar issues of the WiFi home network getting disconnect frequently. Esp when the phone is on standby mode. Every time I open example Whatsapp it keeps asking me to connect to available networks.

Can someone check the Apple update 11.3.1

Feb 9, 2018 6:12 PM in response to Gator5000e

I have the same issue, but since 3 days. My iPhone is disconnecting from the wifi every minute, ex:LTE, HomeWIFI, LTE, HomeWIFI, etc.... I rebooted the network, tried different setting, renamed my SSID, Installed iOS 11.2.5 (after the problem appears), I restarted and cleaned the memory of my iPhone, etc.... I noticed that the WIFI is low and high by moment without explanation. I also needed to re-enter the password on my known network's. I have two other iPhones in the same house, but neither shows this behavior. Other computers, phones and printers stay connected. It seems to be a software or a hardware troubleshooting. Does anyone have clues ?

Feb 25, 2018 10:43 AM in response to Gator5000e

Unfortunately this did not work for me. I'm pretty savvy with home networking and followed your (solid) suggestion to the letter. Upon rebooting of my router and reattaching my iPhone to the network I did get a new IP address assigned, so I'm certain I did everything I could. Five minutes later my 6s (on 11.2.6) dropped off the network and continued to do so.


I truly believe this is an Apple issue and I hope it is resolved soon.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

iPhone keeps disconnecting from WiFi

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.