Token Expiration immediately after registration

For some users (approximately 5 out of 50 so far) we are experiencing a token expiration message after clicking the activation link in the email after they register. This is happening immediately after they register so the have most certainly not exceeded the expiration limit of 7 days we have set. The “resend activation email” option does not work.

Strange! What’s your development environment like? Are you using an SDK, Widget, etc.?

Azure .net programmed in C#. Custom code using OKTA API calls.