iOS 15.4.1 Wi Fi problem

Since ios 15.4.1 and now 15.5 the issue still happens. Iphone 12 pro max and an iphone 13 pro max, but iphone se 2020 is ok.

The problem is the wifi system of the router (i think the Airtime Fairness technology ( it managers devices without connection —-> example : iphone blocked without using)

The issue is not present on old routers.

Issue solved : buy a Huawei router witch wifi6, wait for some hours (my case more than one day) and the issue disappears, no more disconnections (more than a week without problems and wifi 6 is highly recommended)

Possible cause : 1) low and unstable wifi potencial from your internet (ISP). iPhone PRO MAXs have something disconnects from lower signal (when the iPhone is blocked essentially).

2) Apple try to load automatically a WIFI spot you recorded from another site (example your parents' home) and what try to connect the wifi password is your wifi password (it's the other). I know you consider me mad, but I noticed that wifi password in my IMAC, MacBook Pro , and iPhones, connects automatically without my effort (from the iCloud maybe) when wifi password is sharing between the devices.

So, you'd better erase all your wifi's password saved, connect new Huawei or Linksys router and voila.

NOTE : issue for me is since ios15.4 (march 2022) on iPhone 12 Pro Max and 13 Pro Max.

This is in no way any solution to the problem. It is generated by the update. Just updated my daughters iPhone 11 Pro this morning, and now she experiences the same issue.

iOS 15.4.1 is the issue

My wife and I both have ipads we both updated to 15.4.1 both ipads immediately started to lose wifi connections. I checked the speeds both were around 4 mps download upload less than 1. My computer on wifi was over 40mps which was next to the ipads. We are both experiencing continual slow speeds and resulting wifi dropouts.

This is definately caused by the latest update. How do we fix it? I have tried all my setting on the ipads and the modem. Nothing fixes it.

I’m sorry to say that these ‘Helpdesk Advice’ topics start to annoy me, since they don’t help to solve the actual problem:

iOS 15.4.1 has a connectivity issue, strongly present on WiFi (yes, naturally I restarted the WiFi router; yes, I removed the WiFi amplifiers and stood next to the WiFi router to ensure full and direct reception; yes, I restart both iPhone and iPad on a daily basis; no, my daughter is not using any form of VPN and never has, where I do, but we both have the same issue), and a little less strong on cell connetivity (both on iPad Pro 13” 5G as iPhone 12 Pro).

Hence, the only solution would be a quick update from Apple. Please take responsibility and resolve the issue asap.

It has to be the update. My phone updated last night and now it does connect to my Wi-Fi but there is no internet access, while all other devices connected to the same Wi-Fi have internet access. The update is the only thing that changed. my computers (personal, work, others in the house) are connecting to the Wi-Fi and working just fine. Some use VPN, others don't. Apple, FIX IT!

Same issue as everyone else, updated and now my family has very slow and intermittent wifi on our iPads and phones...and no...I do not have a VPN. I did speak with Xfinity, as I wanted to make sure it was not an internet issue, and the gentlemen on the phone said they are getting a lot of calls about this with people thinking it is their internet...he was aware that the issues are with iPhones and iPads and that there was nothing on their end. The only suggestion was to wait for Apple to fix it. Come on Apple, you can do better!

You have not read everything I posted. I explained why VPN needs to be deleted AND REINSTALLED after an update. I won’t post it again because that is getting boring.

EVERY version of iOS patches some real and some potential vulnerabilities. Apple doesn’t force you to update, but they make it a pain if you don’t. Please read the security updates for each version before you decide you are willing to live with the risks of not updating. And 15.3.1 didn’t MAKE the user vulnerable to hacking; users were vulnerable before and into that update. 15.4 fixed one vulnerability, and 15.4.1 fixed a newly discovered vulnerability.

But here is where you can learn what risks there are that are fixed with each update→Apple security updates - Apple Support

But since you are in favor of using VPN, even though it offers no benefits and adds risks, here is something to think about→Don't use VPN - GITHUB

There are two legitimate purposes for using VPN:

• To allow access to a private network such as a school or business when you are not on site. 
• To allow access outside of a country with a repressive government that has restricted Internet access. (This has suddenly become more important)

Any other use is risky, and can lead to problems like the one discussed in this thread. VPN disguises your location by making you appear to be somewhere else in the world. But you usually can’t control that “somewhere else”, and if it is in a location that an app isn’t approved for the app won’t work. Plus the fact that the provider of the VPN knows everything about you and your location, as well as what sites you access through the VPN. So you are totally dependent on the VPN provider’s honesty. As a start, if the VPN is free, DON’T USE IT. The provider has to make money somehow, and if you aren’t paying them then they are selling your private data to make money. But even those that charge can’t necessarily be trusted. For example, a few years ago Avast was caught selling user browsing data. They claim they have stopped doing so. 

You don’t really need VPN when using public Wi-Fi, because all communications between your device and the servers it accesses are end-to-end encrypted.

If you want VPN for privacy about the sites you visit, that’s not a good choice as discussed; instead you should download and use the TOR browser.

With iOS 15.2 for iOS/iPadOS and MacOS Monterey 12.2 and later Apple now has iCloud+ Private Relay, which is like a super VPN, except that it doesn't spy on you→About iCloud Private Relay - Apple Support

jigneshkhatri wrote:

Have a similar issue with the WiFi with iPhone 12 mini after updating to 15.4.1. WiFi gets connected but shows a slow connection with a few apps, but the WiFi connection isn't actually slow.

Are you using VPN? It typically reduces speed by 1/2 or worse.

I also have this problem within iOS 15.4.1. It says my wifi has no internet connection, but then i can fully use the wifi on my macbook pro. Definitely wrong within the iOS itself. **** it apple

Hi all, After iOS 15.4.1 update I have been experiencing WiFi auto disconnect issue on my iPhone 11. Did restore/clean install iOS but nothing changed. I have MacBook Air as well and that seems to be working as intended. Could say that surely as when WiFi disconnect occurs on my iPhone at the same time I check my other devices connection for example my MacBook Air plus my other android devices and that works with no issue. Hope that Apple Inc should look into this and will fix this issue in the next update. Thanks!

I just recently got my iPhone 13 Pro Max and am having Wi-Fi issues. When I check email, going online or even apps that connect to Wi-Fi won’t work unless I toggle Wi-Fi off then right back on. It works fine until my phone goes to sleep, when I wake it up and try to use Wi-Fi I have to repeat the steps of Wi-Fi off- then on.

There is essentially nothing we can do before Apple patch it out. And, no, resetting either your device or router is unlikely to change anything at all. When people say those things, it's basically just some general advices that can be applied to any random situation, never works but is always "safe" to say.

I’ve removed my personal VPN, I use for Norton security. Didn’t help. Performed all other steps suggested here; nothing… My husband’s Android, our Windows laptops and our TV all have internet connection. I get it to connect to Wi-Fi on my iPhone but none of my apps work unless I disconnect from Wi-Fi and let it use the 5G connection only.

I must agree with everyone here that it’s the iOS update that is to blame.

Well, you are unlikely to get an update from Apple, because it is a problem with a few specific phones. If it was a general problem with the update you would see thousands of posts about it, as over 500 million users have the update. So the best thing to do is make a genius bar appointment and have your phone checked out.