The credentials specified are invalid (302): This error indicates that the specified URL is incorrect because it uses the incorrect protocol (http vs. https). Note that MigrationWiz accepts public but also self-signed SSL certificates; there is not an issue if your SSL certificate was self-issued.
We recommend the following:
- Log in to OWA.
- Check to see if the URL has http:// or https:// as a prefix.
- Compare the URL with that specified in your configuration.
In some cases, OWA may be configured to use http while Exchange Web Services (EWS) may be configured to use https (or vice versa). If the issue above does not resolve the problem, check the SSL/TLS configuration for the /owa and /EWS virtual directory in IIS.