Can't sign into xbox 360

You can be signed in on the Xbox 360 and the Xbox One simultaneously, you just can't be signed into the same generation of console at the same time (an Xbox 360 with another Xbox 360 or an Xbox One with another Xbox One).

This may help:

https://support.microsoft.com/en-gb/help/12409/microsoft-account-app-passwords-and-two-step-verification

Hey kryptonliveries,

Thank
you for letting us know that the issue has been fixed. We'll be locking the thread as the issue has been resolved. If you require any help with any other issues, please feel free to come back to the Xbox Forums for further assistance. If anyone needs assistance
with this issue or any other issues, we suggest creating a new thread.

Thank you
again and have a great day
kryptonliveries!

i just re-downloaded my profile again. just type in your email and password and then you should get to the remember password screen. here just wait for ca 5 mins, check "remember password" and press next or whatever it was. wait a little longer and it
should work. worked for me at least

The same is happening to me i put my email and password in and it comes up with rember password wont let me click rember password at all can anyone help