Duo failure to authenticate second user

[#1]

I have just upgraded to duo and sent the link to joining party . when the party tries to log in there is a message that says the login cannot be authenticated due to either incorrect address or living in another country

[Billy-J]

Hey there! Thanks for reaching out.

In order for someone else to be added to your Premium Duo plan, they will need to live at the same physical address as you, plan the owner. If this is the case, I'd recommend sending them a new invite following these steps using a different browser or private window. 

If they still get an error message, can you send me a screenshot of the error message that you're seeing? Make sure to hide sensitive info when posting to the Community. 

Keep me posted!