I cannot get outlook to connect to xfinity email

About 2 days ago my Outlook account asked for me to reenter my xfinity credentials. Since then I have not been able to sync xfinity email with Outlook on my IPad or on my IPhone. Tells me my username (email address) or my password is incorrect. However, I can log in directly to Xfinity email and my laptop will still connect. I have tried everything that I have read on similar issues experienced by others but no luck.