ATT DirectTV Stream & Firestick HD

About every other time we open the DirectTV Stream app through the Firestick HD, we get a message "something went wrong, try again later".  We have to reboot the firestick by unplugging it.  Then the app opens.   This only happens with the DirectTV Stream app.   All other apps on the firestick HD work well.  Once we get the DirectTV Steam app open, it works well.  But then another day, we have to reboot again.  Have tried reloading the DirectTV Stream app.  Went to settings and cleared the memory.  Sent the Firestick HD back and got another.  None of these fixes worked.  Interestingly, on another TV, with a non-HD firestick, we have not run into this issue.    Anyone have any ideas to help?  In the category and topic selections below, I had to select U-Verse since no one has bothered to add DirectTV Stream to the categories!  Get with it AT&T!