Two-step authentication pops up on both devices at the same time
- I am asked to sign in here for support with user id and two-step authentication using Safari .
- Two-step authentication is via my iPhone iOS 12.1.4
- When I ask for the verification on both devices it is asked to confirm the other asking device so I can get my verification code.
- The codes don't work.
That means I've tried codes given on both devices. When I validate one device the code disappears and is not accepted on the other device.
This is no good. Can you help me? What I can imagine is that one device, my iPhone is not really valid for two-step authentication.
MacBook Pro 13", macOS 10.13