iOS 11.4 WiFi Problems

Go to settings and open your wifi. Select your wifi by touching the wifi name. Click on Forget This Network. Touch Forget this Network (in red to confirm). Then open up WIFI to rediscover your network and re-enter your password for your network.

This fixed my WIFI issues on iphone 6 plus and iphone 8 running ios 11.4 so far.😉

I have the same problem too., but i try to forget wifi network, then enter more option, click renew lease, then enter configure DNS — change to manual — remove old dns server change to 8.8.8.8, then connect again., it solve my problem, hope this work for you

There might be two issues here - one being the wireless adapter/code on the ipad, or how vendors do wifi, when it comes to 80 Mhz!!!

Anyway, I resolved this with 100% success everytime. Did a test on my HP560 and Linksys LAPAC1200 WAP's.

On my LAPAC1200, the ipad works, but on my HP560 it doesn't.

If I change channel width to 20/40 Mhz, and not 20/40/80 Mhz, on the HP560, the ipad works - everytime!

But that setting isn't required on the LAPAC1200, the ipad works with 80 Mhz. I don't know if I'm able to verify if the ipad runs 80 Mhz one the LAPAC1200, but after tripping over this for several months now, I DONT CARE 🙂

Cheers all 😀

Solution: Go to

Settings >> General >> Reset >> Reset Network Settings.

After reset network settings, log-in to your Wi-Fi network again.

It is NOT your router 100% guaranteed and not all Apple Products are affected even in the same household. Save your money and wait for a fix from Apple, 11.4.1 has been sent to developers to beta test or you can go to the Apple Store and have the Genius revert your Apple product to 11.3

I found that I had to do a few things to solve the problem... honestly not sure which worked...

1) 11.4.1 b4 helped quite a bit, not perfect though

2) replaced modem (free)

3) put a new router in place. This router was still an AC1750, but did not have simultaneous bands, only 2.4 and 5

it all worked... so out of curiosity, I reversed everything and was able to recreate the problem .... I think I might know what it might be.

it is an 11.4.# issue with the 5 ghz band. When I set the old router to 2.4 only, absolutely no problem.

yesh, I know it makes no sense at all.

The Apple products do work fine at 2.4 and 5ghz, you just have to set the 5ghz for 20 or 40 MHz wide channels; it doesn’t seem to like 80 MHz wide channels.

Also, the 11.4.1 update is working great.

Hope this helps.

Got iPhone working on the 11.4 by going to setting click on forget this setting and then rejoin and put in AT&T password. Make sure you are using correct password. I had to go back years and look it up. Mine started working after forgetting and rejoining plus password for router. Also go to settings to get 11.14.1 to install. It was there for both iPhone and iPad. It did not let me know this time, I was reluctant for sure but it works. I did buy unlimited data plan however when the other install didn’t work for a month- had to or 💰.

I have the same problem. It was present in 11.4 and got a lot worse in 11.4.1. I am using an iPhone 6 Plus and the issue was so bad I disabled WiFi full time (otherwise my phone was going to meet a wall at very high speed). Anyway, I was reaching my data quota so started to play around (resetting network settings and following other advice in this forum etc) with no real success. Then I disabled the auto lock timeout completely (“Display & Brightness”, “Autolock” = Never). Since then WiFi has remained connected full time (even when locked). Hope this helps. Regards.

I was just able to solve it. Lock your phone and wait till your wi-fi connection drops, then go to your wi-fi settings but DO NOT connect to your wifi, tap on the “i” next to your wi-fi name for more settings and the enable “auto-join” option.

After I did this my connection has not dropped anymore. Let me know if it helps

I'm SO HAPPY now!. Someone said iOS 12 beta 8 fixed the problem, so after trying everything on the forums I thought I'd give this a go. And it's FIXED it 😀 I've watched stuff all night and this morning and it's not dropped once! Either get the beta or wait for iOS 12 to drop 😀

Reset your network settings of your Iphone/Ipad.. Worked for me.

I was having the same issue with my iPad Air 2 on iOS 11.4, the only way to get WiFi back was to reboot. I downgraded to iOS 11.3.1, now everything works well again. I hope they fix this bug in the next update.

I experienced similar issues with two of my phones since iOS 11.3 (upgrade to 11.4 did not help). It was definitely not my router as my Kindle works fine. Had tried just about every logical thing to fix this, but the only workaround that is holding up is adding the MAC addresses of all my devices to the router and enabling MAC filtering on the router. My phones have not dropped the wifi signal since I did this a couple of days ago.

Had similar problem with my IOS devices losing then not reconnecting to home wifi. Only solution I have found is to turn router/modem off for 30+ seconds, then not long after it is restarted the IOS will reconnect to wifi. at first this was happening everyday, now just every several days. Hope Apple has some kind of fix in the works.