Just got home from a 3 week house sitting gig, pop on my 360 to only be greeted by
"Your Xbox LIVE membership information isn’t valid. Please use a profile that contains a valid membership or recover your profile from Xbox LIVE."
I still have a month left on my 12 month subscription so I know that isn't the case. I've never logged into my account from another 360 and have not used a Windows Phone, the 2 reasons Xbox Live lists as the cause for this error message.
I am not happy about having to recover my gametag. Would love some kind of heads up or details about what else could possibly be going on.