I turned on 2 factor authentication last night. On my desktop PC, because it's a trusted device, when I log into Xbox.com via Internet Explorer, I don't need to enter in a security code. That's fine. That's how I want it to work.
However, when I sign into my Xbox One, it asks me to enter in a security code, so I have to use Google Authenticator on my Nexus 5 to get a code, then type it in.
How do I make my home Xbox One a trusted device so that I don't have to enter in a security code when signing into it? 2 factor auth is useful for protecting my account if someone tries to log in on a device other than my desktop PC or my own Xbox One, but currently, because I have to enter in the security code when signing into the Xbox One, it makes me not want to use 2 factor auth at all.