Wi-fi stopped working after upgrading to iOS 17.0.1

I'm having horrible Wi-Fi connectivity as well. I had the Beta and worked with no issues. In the days following the actual update I started having problems when on Wi-Fi. My connection is fast when it's working but it's very problematic:

1. Videos on IG and Twitter/X stop in the middle.
2. Connecting to my Apple TVs to use as remote is also horrible, needing over 5 minutes to see the boxes. Also after connecting to one of them, it gets disconnected again constantly.
3. Opening some links in Safari also fails sometimes with "page not available" and then it works when refreshing.

All other phones and devices in the house work perfectly, so it's not my router. I have an iPhone 14 Pro. I have tried the Network settings reset and also forgetting the Router and connecting to it again.

I had same problem also since 17.1 update. I would just turn Wi-Fi or cellular off and back on. Would have to do that every time. Then for mobile cell service I just happen to be changing carriers, from Straighttalk to Spectrum Mobile. No problems ever since then. But my iPad still acts up. I just turn Wi-Fi of and back on and it’s fine. I don’t have cullular on that. Wi-Fi only.

Samen issue here. iPhone 11 updated to 17.0.1 on a stable mesh WiFi setup. Drops connection all the time. Or even shows WiFi connection but nothing loads.

No such issues before the update. No issues on an other iPhone 13, 2 iPads and an android work phone.

restarted the modem, restarted the 3 WiFi adapters throughout the house, forgot the network and reconnected, restarted the iPhone numerous times. Nothing works.

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.

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.

There seem to be many reasons causing this and several fixes which have to be repeated, but mine started working as it should after doing the next update. And there have been a few more updates since then. I think 17.0.1 was just buggy.

its not a local network problem its an iOS17 issue.

Exactly! That is how I fixed my issue. I have NO IDEA how my VPN got turned on.

Same with me: after update to 17.01 my Iphone 12pro max and also my iphone XR (work) I don’t have wifi connection.

Several restarts and reconnection doesn’t work.

The WiFi symbol says the devices are connected, but there is no signal and no acces to the modem (FritzBox).

All other devices work well.

Never had this problem before. Update 17.01 is faulty!

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

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.

OS16 update on my son's iphone XR broke the WIFI two days ago... then I noticed that it broke the Bluetooth later on

Went to Apple Store and did performed a diagnostic and said the antennas are bad... want to charge $500... BS

I did notice that OS17.1 was fixed the Bluetooth, but the WIFI is still down

Same here. iPhone 15 Pro Max automatically joins work WiFi but will not at home with mesh WiFi. Same with iPhone 11 Pro Max. We have to restart our phones every time we return home to use our WiFi. DO BETTER APPLE!!

Every single device in my house connects to my mesh network except my iPhone, 2 iPads and MacBook Air. IIt happened after updating to 17.4.1 last week. I’ve spent hours trying to figure out what the problem was (and yes I deleted my VPN Profile and reset my network settings only to finally figure out it’s the Apple update. My husband hadn’t updated his devices but updated his iPhone this morning and now he’s unable to connect to the internet. His iPad is no longer supported so it can’t be updated. It’s amazing because it connects to the internet perfectly, as all our devices did prior to updating each. SMH

When can we expect for this to be resolved? I’m hoping to hear asap.

It’s causing huge issues and it’s absolutely not acceptable.

Obviously, at least I hope all of the comments are being read and it’s understood there’s absolutely an issue which must be addressed. I know if it were a celebrity, musician or any Apple upper management or their family this would be taken care of immediately.

I face exactly the same behavior, Phone can't connect to work wifi secured by certificate. It slows down to zero and heats up like ****. Installed Version 17.0.1 - not usable anymore