When i tried to sign in it asks me for my email and password, which i entered correctly. When i get to the screen about whether i want it to remember my password it signs me in for about a second before saying "can't connect to messenger". When i click next about remembering the password it comes up with error 8000FFFF and signs me out.
I have tried switching off and on, testing connection, where my NAT type is moderate but this has not affected it in the past, and even deleting my profile, clearing my cache and redownloading. The exact same thing happens.