iOS 11.4 WiFi Problems

We updated yesterday to 11.4.1 (the wifi bug wasn't mentioned in the release notes) but so far so good.

Have the same issue... both with 802.1x, wpa2 and with no wireless security. Running 11.4 on ipad air 2. Seems that i have more success connecting when the access points, only uses the 20 mhz band, no auto, regardless of security config. Both my AP are HPE 560. Non of my other devices have issues counting 2 smart tv's, 3 Android phones, home automation from Danfoss and other random stuff. Ipad is USELESS without wifi.

I think we are discussing two issues here - the frequent WiFi drops that occur a few seconds after locking the screen, that came with 11.x and the WiFi reconnect problems that are being described in the original post and that appeared with 11.4! See also my separate post in this thread.

We have some devices getting it bad (sons iPad esp) and others (e.g. my iPhone) not bothered - not sure its worth the money to invest in a new router.

Anyone tried issuing a static address or running a sniffer or similar on the network to see any errors?

Agreed. It's nothing to do with your LAN equipment or cable plant. Everything else in the facility/house continues to work without issue. My iPhone X isn't affected. My iPad Mini 4 *is* the only thing affected and it didn't happen until the last OS update. People were reporting this issue with previous updates but none of my equipment was affected. Since it's not affecting 100% of a sub-domain of users within the whole, then that is harder to trouble shoot and resolve for the programmers. That the problem is expanding is an additional concern.

There's clearly a problem in the code.

Update to 1.4.1 Public Beta 4 didn’t solve the problem. I try 3 different wifi connection the problem still there. iPhone will lost connection no matter what. The solution to solve it temporarily is to power off your device and boot it on again.

Just experienced a similar issue with iOS 11.4 on iPhone X with netcomm powerline np508 adaptors. The iPhone would cause the network to fail consistently. The iPhone might connect after a reset, but ultimately the network would fail/hang. Connecting an iPad Air 2 running iOS 11.3 worked consistently as did a MacBook Pro. Connecting the iPhone X using a third party device to the same network, worked fine, it did not cause the network to fail (I used an EasyAccess WiFi box connected to the power line adaptor using an Ethernet cable). So there definitely seems to be a fundamental issue there.

ive got 2 pc on it, 2 iPhones, Xbox and 2 iPads, I don’t have a single problem with any of the others, I didn’t have any issue‘s with the iPad Air 2 until I did update 11.4.1 yesterday. It does it on 2.4 and 5 channels.

All of a sudden the search bar goes 1/8th of the way across and freezes. Go to settings on iPad, turn WiFi on/off go back to safari and it works. Haven’t touched my router.

Same issue on iPhone 6 here. Just upgraded to IOS 11.4.1 and now my phone keeps dropping connection (annoyingly, because I'm in a mobile signal blackspot at home).

My wifi has 2 connections: 5g and a 2g. Switching between these every time the connection drops seems to enable a reconnection, albeit temporarily until it drops again.

It's not my router or signal strength because that is working on other devices simultaneously while the iphone is flipping out.

I’ve suffered this problem for well over a year and with my iPhone 7, not my iPad. As you point out, other devices work fine (iPad, MacBook Pro), so its not the router. Besides which, it happens everywhere. I can’t go asking hotels, restaurants, cafes etc: “please reset your router”. I took my phone into an AppleStore; they tested and said “no hardware fault. Try backup, factory reset, restore”. I did that and it ‘seemed’ to help for a brief while.

The device simply drops WiFi when it feels like. Sometimes when the device sleeps and is subsequently woken. Sometimes whilst I’m physically using it. Most frustrating. Check out the screenshots. Often WiFi disconnects & is either off or even grayed out, so I can’t re-enable, other times the WiFi settings show me as connected, but the status bar shows me as on 3G/4G or whatever. Switching WiFi sources, toggling various settings or even rebooting the device are usually needed to get WiFi functioning again.

Gone are the days of: “...and it just works”. I would suspect faulty hardware. But if their tests aren’t smart enough to detect it... or, worse still, your device behaves when they do... *** you gonna do?

In my case it happens with all wireless networks.

I also spent some time with Apple on the phone. They told me to reset my iPhone and make a fresh, clean install. As I truly doubt this would change anything, which I told her, I didn’t do it.

She kept denying this is an issue, whenever i have the chance, I should make a clean installation, this will fix the issue. Call ended.

I've been suffering this problem with my iPhone 7 for well over a year now; so at least iOS 11.0 release. Plus, I took my phone into the local 'genius' bar, where they ran hardware tests and denied any hardware issues. I was told to backup my device, restore to factory settings, then recover from backup. That and any other suggestion of rebooting routers, resetting device network settings, rebooting iOS device etc is all ********. None of the workarounds/fixes last and my device misbehaves with all routers (home and away). (Not so with my Mac, my iPad or friends devices with the same routers). I can't very well ask every coffee shop, hotel, bar, restaurant and place I visit to reset their router just for my naff iOS device that won't behave. Either Apple is shipping faulty devices or their wifi-related software ***** ***. To say that they have no record of these problems in their database is just BS...

Same here on iPhone 6 plus. Turning the iPhone off/on fixes it, but the next time I get to the same network it drops again. Very annoying.

This is a bug since the iOS 11.3 update. It happens at home, work and everywhere else.

To me seems like wifi shuts off to save power and loses Routers IP.

PLEASE APPLE ADDRESS THIS!

Yeah.... ok...it’s a temporary fix only. Do this...

shut down the iPad... let it sit awhile. Restart and see what happens.