After installing iOS 18.1 RC, VPN using IKEv2 and Wireguard protocols stopped working. VPN successfully connects, but there is no internet. On older versions everything works fine. On OpenVPN protocol everything works fine. I haven't found any errors in Console.log.
How are you setting up this VPN? Using the iOS UI? Using a configuration profile? Using a third-party app?
And if it’s a third-party app, is that an app that you developed?
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
Yes, I am a 3rd party application developer and have already solved this problem. The problem was in the tunnel routing settings.