The Vault won't Validate with code sent.

Hi,

over the past week I got logged out of my Vault Account.   When I try and login again it connects ok to my Norton account but, when I type in the code that has been sent via SMS to validate my account it attempts to verify and it goes back to the 'Get Started' screen, I repeat the process and get the same result.

I am on Windows 10 insider, latest build (Windows 10 home). 

I can login and verify my account on a browser (I have also logged out of the account on the browser before trying the above).  It does not validate by clicking the 'vault is closed;' icon on the toolbar in Internet Explorer 11, Chrome or Firefox or via the Norton Security with Backup GUI.

any help appreciated.

regards