Can't download profile to play xbox 360 games on the xbox one

Hello, my xbox live profile is called "RinsableMLG" and today for some reason, I can't play xbox 360 backwards compatible games be ause my profile won't download on the xbox 360 servers. I can play xbox one games, but I can't play my xbox 360 games
and my profile won't download and it states "There's a problem with your credentials, blah blah blah". If I use my other two accounts, I can play on the xbox 360 games but not my RinsableMLG one. I seriosuly don't know what to do and I'm panicking right now.

I have the exact same problem. I was just trying to play saints row but couldn't connect to xbox live on backwards compatibility. So I deleted my account and now I can't download on backwards compatibility with the same error message as you.

I play fallout 3 on my xbox one but I can't save because I can't download a microsoft profil because I don't an xbox 360 so I don't have a profile

help me

My Xbox one profil has a password that is more than the 16 caracter use on xbox 360 so I cannot use this profile

You can't pre download games for the Xbox one because the Xbox one isn't out yet plus you can only play 360 games on 360 you can't play 360 games on the Xbox one an I'm not sure about your other question

Digital 360 games playing on Xbox One or on 360? If playing on Xbox One and your 360 profile isn't working right, try downloading the profile using a hard wired internet connection. If that works, you can go back to wireless to
actually play the games.

No, sorry, you can't play Xbox 360 games on the Xbox One, even if they are digitally downloaded. At this point in time the Xbox One isn't backwards compatible. The games are linked to your account but the Xbox One simply can't run Xbox 360 games.