iPhone 6s on iOS 11 unable to join wifi network

My iPhone 6 would prompt with incorrect password after first attempt (when I knew password was correct) after upgrading iOS 11. In addition, anytime I would leave network and come back, it would not auto connect. I would be prompted again with incorrect password at attempted reconnect. Updated iOS 11.2 and still had problems. Reset network settings, toggled wifi location, wifi assist, wifi calling, reset DNS, nothing worked. Reset router with new wifi configuration, nothing.

I prefer not to broadcast my SSID from my router. I finally thought to turn my router SSID broadcast back on and it now connects without issue. However even with this workaround, this is a very annoying bug that needs to be resolved.

This web site will gives you many possible solutions from simple to complicated depending on what easily works

I used the first and easiest one and that worked for me.

http://www.iphonehacks.com/2017/09/fix-ios-11-wifi-problems.html

Try any one of theses suggestions from easy to complicated. The easiest one worked for me.

http://www.iphonehacks.com/2017/09/fix-ios-11-wifi-problems.html

My question is why doesn't Apple fix this . May people have no idea how to even search for a fix for this problem

We had the same issue, updated to 11.2.2 more than a week ago on iPads and iPhones and out of nowhere our iPhones would not connect to our Linksys router, we have a hard wired access point on the other side of the house that still connected fine. Rebooted the Linsys router after trying most other suggestions and problem solved.

Hi, i had the same issue after updating the ios on my iphone 6 plus.

Tried everything, nothing worked. Finally, i changed the wifi password to a simple one like "12345678", it worked immediately. After connecting my phone to the wifi, i changed the wifi password to the original one on the router, then i updated the wifi password on my phone, it worked normally. No other method worked for me except this one.

If you have access to the router, open the wireless security settings in the router and change the wifi password, then connect with the new password, once connected u can reset the wifi password to original one and update it on the phone, this worked for me. However, i'm fed up of iphones due to such issues, planning to switch to android.

Hi, i had the same problem, but i solved it . My iPad couldn't join any network, not my home router, not the hotspot from my android phone. (All wifis were password protected) I did "forget the network", that didn't help. I did "reset network settings", didn't help too. One evening i thought:"hmm, what if i take off password of my phone hotspot and try to connect from iPad. And it just did connect with this password free wifi! I was sooo happy, hope it helps to anyone here, who are reading this right now 🙏

I have the same issue on my iPhone 6. Since I am traveling I just got a message I am now facing 400 Eur additional roaming charges. Thank you Apple. I tried all suggested fixes and nothing works. At the Apple store they said they didn’t see a problem. Not good and very disappointing. I guess this is how they get people to upgrade device

I have tried everything, even reset all setting, nothing worked. It doesn't connect to any WIFI apart from Apple Store. Apparently is to do with 5ghz router in store (most routers are 2.4ghz), which *****

I am also not able to connect. 6s plus connection was choppy a few days ago now it just doe not let me connect to my wifi but when i try on other wifi it allows me to. however all my other devices can connect fine except my iphone!!!

Fixed by simply renaming WIFI network name (Or SSID Name). I tried all of these below. None of these worked for me. Renaming forced other devices to reconnect, but I had no problem reconnecting other devices with new network name as I had only 6 to 8 devices.

My Phone: iPhone 6, iOS 11.2.6

1) Force Restart

2) Wifi Channel change

3) WMM disable

4) Router restart with router being off for 2 mins. Nope.. it didn't work. Tried unplugging power card for both modem and router. That also didn't work.

5) Static IP for my iphone

6) Disabled Wi-Fi Networking

7) Reset Network Settings

8) Forget this Network

9) Removed Share My location devices except current one.

8) Disabled WiFi assist

9) Disabled WPS

10) Enabled IPv6 in Netgear Router

11) Even moved away 5 miles just to make sure different Network gets picked up from LTE and hoped that would flush some WiFi network cache along with LTE cache if any. Realized I didn't have to do this stupid thing of moving away from home as they are not at all related. But, you never know stupid things work some times. 😁

12) Disabled WiFi and Enabled WiFi multiple times.

13) Tried Airplane mode and disabled Airplane mode

14) Tried personal hotspot on another phone to connect from problem phone and see if that would flush cache.. Nope that didn't work either

15) Finally the only thing that worked for me was RENAME THE WiFi Network Name for both 2.4GHZ and 5GHZ.

This worked.!!!! I actually renamed the WiFi and set a new password at the same time. My iPhone 6 finally connected. I was able to change the network name and password right back to the original and was able to reconnect again. It got my phone back in service and I didn’t have to reset the WiFi on a dozen other devices.

Have you tried https://support.apple.com/en-us/HT204051 and performed a hard reset of your mobile device? Please let me know if this worked for you.

Hi buzzeder,

When did you try to connect a Wifi What did you see?

Did you try to connect another Wifi to test?

Filippo

When you will try to connect another wifi you give us a feedback.

Did you try to reboot a router?

F.