woke up this morning with a software upgrade notice, hit ok, then hit with the following error - Account Check error - Exchange mail server (EWS): Login error. HTTP/1.1 401 Unauthorized. Please make sure your settings are correct. Using MS Exchange Server - settings "seem" ok, not really sure what to look for. Only thing I notice when I enter the settings is a green box on top that says "This account can be upgraded to stronger security (OAUTH) Appreciate any guidance. Fortunately my "Samsung" email app is working and I am getting my emails on the desktop, laptop and ipad so assume its not the server or microsoft.