Xbox – Options for playing Xbox Live on a strict public internet connection

Its like using the same account on two xbox. You can't do it.

Now there are obvious reasons why Microsoft doesn't want you to be able to use the same account more than once (which are compounded by DLC), but the bottom line is: you can only be logged into the same account in one location at a time.

Now you might want to consider the new Family Pack, which is coming soon. Or streaming your Netflix to a PC.

The short answer though, is: No

In order to cancel an account, you have to call Xbox Support. I did that once after a trial period with Halo 2 on the original Xbox. They really tried to keep me on the service, but I suspect that won't be as annoying as you explain your situation to them.

I think I remember something about the gamertag you cancel being unavailable for a certain number of days or months in order to give you a chance to reactivate your account should you want to. That's probably automated too so I doubt they can make exceptions.

I know this is a late answer, so if you figured this out please tell us what you did as it's an interesting question!