Wont connect to wifi until restart the phone after upgrade to ios 27

After updating my iPhone 13 from iOS 26 to 27.0.1 it refuses to connect to various Wifi Networks. It ether does not connect at all and may ask for the password again, or it will connect and claim that there would not be an internet connection. The same issue also als occurs when trying to connect to carplay. I don’t have any issues with any other of my devices connecting to those wifis. When i restart the iPhone the issue disappears. Turning off wifi and back on doesn’t help. It seems after some time the wifi issue occurs, and then it doesn’t connect to any wifis at all anymore before i restart it.

Posted on Oct 24, 2026 2:44 PM

1 reply

Community User

Oct 24, 2026 3:01 PM in response to deltachaos

The most effective fix for this is resetting your network settings. This clears out cached Wi-Fi credentials, cellular configurations, and Bluetooth pairings so your phone can rebuild those connections cleanly. Keep in mind that this will erase your saved Wi-Fi passwords, so you will need to re-enter them once your phone restarts. To do this, go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.

If you use any VPN apps, ad blockers, or security software, those are another common cause of connection drops after updates. Try temporarily disabling or removing any VPN configurations by going to Settings > General > VPN & Device Management to see if that prevents the issue from returning.

You can also refresh the system's background wireless service by going to Settings > Privacy & Security > Location Services > System Services, toggling off Networking & Wireless, waiting a few seconds, and turning it back on.