Failed to create IKEV2 using code

Question

Created Feb ’24

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p.authenticationMethod = NEVPNIKEAuthenticationMethodSharedSecret; p.sharedSecretReference = [self searchKeychainCopyMatching:@"PSK"];

Failed to create IKEV2 using PSK, and the following error message is displayed:

Start VPN failed: [The operation couldn’t be completed. (NEVPNErrorDomain error 1.)]

May I ask what the reason is?

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Answer 1

DTS Engineer OP

Apple

Feb ’24

May I ask what the reason is?

There’s a wide range of possibilities here. Error 1 in the NEVPNErrorDomain domain is NEVPNErrorConfigurationInvalid. My general advice is:

First test your VPN using a configuration profile. If you can’t get it working with a configuration profile, you won’t be able to get it working via the Personal VPN API. An easy way to create a profile for testing is the Apple Configurator app.
Once you have that working, use the Personal VPN API to apply the same configuration programmatically.

With regards step 2, most problems I see in this space relate to the keychain. I have a code snippet that shows how to do this right in this post.

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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