Im not an expert regarding this area but have you checked the database if the tableau service account still has access to the database? Our setup requires that our "tableau user" must have access to all of our sources. I am thinking, maybee something has changed on the database? I password has expired or - well, anything?
Br / T
Thank you, I need to create a tableau_user in the DB.
Please mark my answer as helpful and correct so other people can take advantage of my answer....
Thanks and have a nice day!