Quote Originally Posted by moog View Post
it's obviously doing some sort of hardware/software configuration check, which is nice.

Actually, no it isn't. I have logged into my accounts from 4 completely different machines in my household and the last time it asked for a code was on Friday. The only thing in common is the router and cable modem. I imagine the next time I am asked for a code will be when my dynamic IP is refreshed with the service provider, but that is only a guess.
I kind of like not having to put in my code for every single little disconnect that I have, but it doesn't make me feel as safe as putting in a code every single time.