One of 3 ways I connect to DirecTV Stream having major problems

39603960X I have used the streaming since the ATT days.  No longer use on computer because of the Windows version I stay with for other software.  But, use on phone and two different TVs. The newest connection (connected through a Roku Express 3960X) has given me fits for a couple of days and now wants me to sign-in. The combinations of email and password that I expect to work do not! Have tried several.