(iOS) Disabling/uninstalling the 1.1.1.1 app makes me unable to connect to the internet?

iPhone 11 running iOS 16.2:

I began having issues with the 1.1.1.1 app last week, where it kept getting stuck in a loop between toggling on/off, giving me spotty internet connection. So I uninstalled the app, and while I could still connect to WiFi, it gave me the “No Internet Connection” error. This happened across locations - at home, work, and a friend’s house. I reinstalled the 1.1.1.1 app and set it back up, and now I can connect to the internet via WiFi again. But as soon as I disable or uninstall the app, I get “No Internet Connection” on WiFi once again. Oddly, internet via cellular data still works.

I’m stumped. Does the 1.1.1.1 app change some WiFi settings and not change them back when it’s disabled or uninstalled? I’ve tried all the basic stuff several times - turned my WiFi off and on again, turned my phone off and on again, forgot my WiFi network and reconnected, checked to make sure my DNS is configured to Automatic (it is), tried using a different service (NextDNS) - nothing has helped.

TLDR - WiFi only connects to the internet when I have the 1.1.1.1 app enabled. I don’t want to depend on this app for my WiFi to work, so I’m trying to figure out why this is happening. Any help would be greatly appreciated.

check VPN in your phone’s settings and if it’s listed click the i to the right of it and delete it.

https://i.imgur.com/J1PjkO9.jpg

Have you already tried resetting the network in the settings?

Thank you, I did that. My WiFi works some of the time now, but I still got the “No Internet Connection” issue after about 10 mins, but then it resolved and started working again. So that’s an improvement.

I’m aware that iOS 16 has caused WiFi disconnection issues for a lot of people, so I don’t know what’s to blame now. But thank you for helping me at least get the WiFi partially working on my phone.

You can try resetting the network settings.

Go to Settings > General > Transfer or Reset iphone > Reset > Reset Network Settings.

Just be aware This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you’ve used before. So any saved wifi passwords will need to be entered again.

Thank you, I will go that route if it keeps happening.