Is Xbox gamer tag screen currently broken?

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.

okay so i have an issue, i think i got a force gamer tag change, but my problem is i no longer have the email that i used with this gamer tag. the email i currently use is linked to my other gamertag and i don't use that gamer tag anymore. how can i change
my current gamertag to my current email without it linking my current email to a older gamer tag? ALSO if you did ban me and give me some really weak , wack gamer tag, how come you are trying to charge me to change my gamer tag? because if that is the case,
this xbox one will be sold for a ps4.

Smwutches Is Correct, The Only Way Your Going To Have Access To A "Gamer Tag" That Has Already Been Taken Is If That The "Gamer Tag" Was Changed By The Owner Of The Current Gamer-tag Or If Xbox Live Forced The Gamer-Tag To Be Changed If It Violated The Code
Of Conduct In Some Form Or Way, Sorry Mate, You Are Going To Have To Find Another Gamer-Tag Or Be Creative, For Example, "Gengar Man" And So On.

hi,

before i had my Xbox 360 i used my mates and i stupidly linked a old account to my current email address and my current gamer tag has a email i don't use this means i wont be able to sing up to netflix or crunchy roll with my current email because its not
the same as my current gamer-tags email how do i swap them ? do i just simply delete my old gamer tag and then just re-use my current email or will it not allow me because it was linked to a old gamer tag ?

If your Xbox One is your home console you can always make a new gamer tag and play on that while renewing and purchasing content with the current gamer tag. Just a thought.