Earlier today I switched on my Xbox yo use the iPlayer app and after having installed a system update I was asked to provide extra security measures for my account. I completed the steps, then changed my password but now whenever I try to connect I get a prompt saying 'You'll need this profile's Microsoft account password to sign in'. I then enter my email address and put my password in but get a 'This email address or password isn't valid for this account. Try Again'.
Just to see if my account details were correct I then came onto the Xbox website to confirm my details were entered correctly and that I still had a full Gold account so now i'm completely lost as to why I cannot sign in.