Wi-fi stopped working after upgrading to iOS 17.0.1

It’s been terrible! It happened after 17.0 was released, even when updating a version of 16 on my SE. My Wi-Fi networks rapidly flash on and disappear in settings, no networks are visible in Other (not my home or printers or neighbors). Under edit I can see my home network and everything looks fine but there is also a blank ghost network. If I turn off auto-join or delete it it comes back. Forget this network isn’t available. Maybe one out of 3 times, if I turn my phone off and on I might connect to my home network briefly. Resetting network settings hasn’t helped. Sometimes it acts possessed and if I try to turn off the Wi-Fi it won’t let me or the reverse- when it’s off it won’t let me turn it back on. My son thinks the updates have broken the PLIST. I have no clue what that means. I also own an Android and am having to use it for almost everything- to use my printers, act as my TV remote, listen to music in car. Driving me nuts because I have to carry the iPhone for work VPN login and I hadn’t carried the Android for 6 months-until this happened the Android was my garbage phone for my 9 yr old to play some old games like Plants vs Zombies.

i was expecting this ios to FIX the wifi issue, but after seeing what some people have to say, as well as 503 "ME TOO's..."

apple. i have to berate you for this. you should not be this incompetent at fixing the one thing EVERY iphone needs. i have had to deal with an iphone that acts like a moody teenager around wifi for the past... basically half a year now. and i am a moody teenager right now as i say this! i should not be comparing my iphone with my basic self, and do so for HALF A YEAR.

and apple, you can't even give us the "then get a new phone" excuse, because i bet your "totally strong" titanium iphone 15 doesn't allow wifi to be turned on. fix this issue. nobody should be switching to android, because that's not what you want out of your customers. you should be keeping them in. so keep your wifi on.

-m.

ssc0312 Said:

"Wi-fi stopped working after upgrading to iOS 17.0.1: I am having trouble with my internet connection since downloading the latest iOS update 17.0.1. I am only able to access the internet through cellular data. My other devices are working on the wi-fi network normally. This issue began immediately after installing the update."

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Troubleshooting iPhone WiFi:

A. About "No Internet Connection":

Just because you are connected to a network, does not mean you have an Internet connection. You may be connected to an internal LAN, and not to the Internet.

B. Troubleshooting iPhone WiFi:

A few thoughts to try:

I. Start Here: If your iPhone, iPad, or iPod Touch won't Connect to a Wi-Fi Network - Apple Support

II. Clear the Temporary Internet Files:

• Cookies perform remembrance of certain site-entered data.
• Cache keeps a snapshot of the last time you visited a site.
• Go Here: Clear the History and Cookies from Safari on your iPhone, iPad, or iPod Touch - Apple Support

III. Restart your Router:

1. Power: off the router
2. Wait: 30 seconds
3. Power: It back on

IV. Reconnect to your Network:

1. Go to: Settings
2. Tap: Wi-Fi
3. Disable: Wi-Fi
4. Wait: 30 seconds
5. Enable: Wi-Fi

V. Add Back the Network:

1. Go to: Settings
2. Tap: Wi-Fi
3. Remove: the network
4. Wait: 30 seconds
5. Add: the network back

VI. Reset All Network Settings to Default:

Example of items that will be reset: (Wi-Fi Passwords, VPN Connections, etc):

1. Go To: Settings
2. Tap: General
3. Tap: Reset
4. Tap: Reset Network Settings.
5. Enter: [Your Passcode]

Same issues here also. iPhone 11 stated with 17.0 update - everything fully stable and functional for years. Then the update and WiFi switch is greyed out. NO WiFi capability, cell still functional.

I have:

Reset the Network Settings

Restored iOS 17.0, 17.0.1, and now 17.0.2

Forced hard restarts

Nothing has helped restore WiFi.

iPhone also heats up or frequently crashes even when not being interacted with. "Oh, there's the Apple logo again..."

This device was rock solid prior to attempting the iOS 17 upgrade. Now it is crippled.

Update: after upgrading to 17.0.3, while there is still a ~10 second delay in getting into Settings -> WiFi, my connectivity issues onto both problematic enterprise WPA2 networks via 802.1x certificates have been resolved. The phone also does not heat up anymore while connecting.

Beautiful ! Now here is the catch. It won't change my opinion of apple products or support. But, this time both apple support technicians got it wrong. Simple fix, thanks "Glory to Ukraine"!

This is happening to me as well. I can say that it definitely has something to do with IOS 17 update. Iphone 15 Pro Max would not connect to WIFI unless I turned cellular data OFF. Then, WIFI would run very well. Ipad Pro - WIFI only model worked great before updating to latest OS version, literally after the update the connection failed. I have to connect to my wife's hotspot on her 14 Pro Max (running on IOS 16) to get it to work at all.

I’m having issues too on my iPad on 17.0.2 but on a WPA2 network. I’m using a centrally managed Cisco network with multiple APs. Has been 100% stable to this point.

All is good, then WiFi stops working. Icon in the top right is gone. I go to WiFi settings and it’s showing the nearby networks so that’s odd. Reboot, didn’t fix it. Pulled WiFi settings back up. Switched to a different SSID and that worked like it should. Switched back to the original SSID and that was now working again.

There is something funky going on with iOS 17.0.2.

My wifi is not even working on my iphone even in ios 17.0.3.

it gets connected but the wifi is not appearing and its like non-existing even after connecting.

It’s very oblivious. They found a way to start getting rid of VPN’s.

Try setting a different wi-fi channel on your router(or set channel to auto). Look at my post on page 5. It fixes the problem in some cases.

That is strange, for me it works without any problem with Fritz box mesh, but it does not work in a certificate based secured environment. Also it works on iPad, only my iPhone 11 is not working. Resetting of Network preferences did not help as well as restarting. I’ll check tomorrow if 17.02 did bring any help but I already doubt it

Found the solution. One of my Fritzbox Accesspoints, which I ised for all IOS devices, was an older model. The WiFi module and the (latest) software installed on it didn’t work with IOS 17.01 (it worked fine with all previous IOS versions)

After I switched off this accespoint and used two more modern accesspoints. The problem was over….Now ask AVM ic they can solve tje problem

I am glad it works for you now, however I doubt this solution will work for me. I work at a large company where IT reports that dozens of other iOS 17 iPhones' Wifi works just fine using certificate authentication, however my iPhone experiences this Wifi issue. For at least me and likely others, there must be some other somewhat rare condition that causes this.

I found that we had similar issues with our corporate WiFi as noted in this thread. One fix was to connect the iPad Pro to a network dock via USB-C. It seemed to fix/reset the cert, but I'm uncertain if this was because it was able to connect to InTune correctly. I will be trying the test later this week with affected iPhones and Lighting->USB-C or Ethernet adapter.