"0x8000ffff code: Deep Ocean" during login to Launcher.

When I attempt to login to https://www.microsoft.com/store/productId/9PGW18NPBZV5?ocid=pdpshare I see:

> Error Code: 0x8000ffff code: Deep Ocean. Something went wrong in the login process. Please check the Xbox App for potential errors. For more information, contact Customer Support directly.