I updated to the latest iOS 18.6.1 and the wifi immediately stopped working. I can connect to any wifi system, however I cannot receive or send data. If I restart the phone I will briefly see the wifi signal icon but when the cellular boots up the wifi icon disappears . Turning off cellular data does not help. I need to revert to the previous operating system, but I don't see anyway to do it.
iPhone 13, iOS 18
Downgrading iOS has never been supported, so you can't go back to the previous version. Do you use a VPN on your iPhone? If you do, not only turn it off (they are completely not needed and often cause connectivity issues), but open Settings > General > VPN & Device Management and completely remove the VPN profile. The same applies to anti-virus or cleaner apps. They all cause issues and aren't needed.
Downgrading iOS has never been supported, so you can't go back to the previous version. Do you use a VPN on your iPhone? If you do, not only turn it off (they are completely not needed and often cause connectivity issues), but open Settings > General > VPN & Device Management and completely remove the VPN profile. The same applies to anti-virus or cleaner apps. They all cause issues and aren't needed.
As I mentioned, having a VPN on your phone, which is totally, utterly, completely unnecessary, ALSO causes connectivity issues. I also told you to not only turn the VPN off, but remove the profile completely.
If you want to have access to Wifi again on your iPhone do the following:
I brought the phone to an apple tech. He confirmed the phone its self is functioning. His opinion is it is a software issue. He stated Apple does not have a way to go back to a previous version. He stated my only option is to hope apple will correct the problem with a future update. He did load a clean version direct from apple servers in case the program had been corrupted. The problem was not fixed.
Thank you for your assistance. Deleting the VPN resolved the problem
Mark Lambert wrote:
Thank you for your assistance. Deleting the VPN resolved the problem
You're welcome. I wish you had taken my advice when it was first offered, but I'm very happy to see it's now working for you!
Mark Lambert wrote:
I updated to the latest iOS 18.6.1 and the wifi immediately stopped working. I can connect to any wifi system, however I cannot receive or send data. If I restart the phone I will briefly see the wifi signal icon but when the cellular boots up the wifi icon disappears . Turning off cellular data does not help. I need to revert to the previous operating system, but I don't see anyway to do it.
troubleshoot here If your iPhone or iPad won't connect to a Wi-Fi network - Apple Support
Mark Lambert wrote:
I brought the phone to an apple tech. He confirmed the phone its self is functioning. His opinion is it is a software issue. He stated Apple does not have a way to go back to a previous version. He stated my only option is to hope apple will correct the problem with a future update. He did load a clean version direct from apple servers in case the program had been corrupted. The problem was not fixed.
If it was a software issue, it would affect everyone with an iPhone who updated to iOS 18.6.1. This forum would be blown up with people complaining, yet ist's not. I can't even imagine an Apple Technical Support person even suggesting it's a software issue.
You didn't answer my question. Do you have a VPN on your iPhone?
I have a vpn. The tech reinstalled a clean copy of the OS at the shop and the VPN was off. Next I have 2 iPhone 13s they both experienced the same problem only after updating the OS.
iOS update 18.6.1 (22G90) stops wifi, but cellular still works on my iPhone 13.
