Gamer tag greyed out when try to sign on Xbox live

I am not sure how it happened. I already had a Microsoft account. When I got my xbox I created an account and got a gamer tag while setting up my xbox. I signed up for xbox live from my xbox using my existing gamer tag and Microsoft account. I then went
to xbox live and signed in using my Miicrosoft account, and for some reason when I did this a new gamer tag was created and associate to my Microsoft account. So, now when I log into xbox live I see one gamer tag. But on my xbox I have a different gamer
tag.

It's on the latest update everything doesn't seem to work ... It's when I try to sign in to Xbox live with my gamer tag that is gold... Please help me

I have the same issue, this has been since a year ago.

I sign into my gamer tag (bioshck multiplayer) when I enter multiplayer option, screen appears "please wait" immediately another screen appears and says "connection error- unable to connect to Xbox live. Please try again later" I can play any other game
on live multiplayer . I even tried forwarding ports. Got a new Xbox, erased everything on hard drive re downloaded gamer tag, restarted my router, called ISP to reboot my Internet and now I am currently sharing my Xbox and signed into another gamer tag and
it let me play on bioshock multiplayers with the other gamer tag. Try switching back to my gamer tag and didn't let get on multiplayer.

Hello there oOI BUMBUM IOo When an Xbox live member chooses an Xbox gamer-tag, they have the full rights to keep that gamer-tag even know if they have been inactive for years along with no gamer-score & no gold membership,
you will not be able to request for the gamer-tag to be forced changed. The owner of the gamer-tag must change it himself or when a forced gamer tag change is imposed due to the gamer-tag violated the code of conduct in any sort of way, if the gamer tag you
enter is already taken, you are prompted to try another gamer tag Also try to remember that gamer-tags are also tied to services like Zune or games for windows live. If a gt doesn't exist on Xbox or has already been taken, it might be in use on one of those
Additional services like gfwl.

A little bit more information..,

on Lego Star Wars the Xbox Live option on the menu is greyed out. When you try to Load a saved game, the message that "no gamer profile is active" even though we are logged in to an Xbox One account with live access. Thanks again.