United have lost both of their Premier League games this season, leaving them bottom of the table, and have been beaten in their last four fixtures, with a United player failing to score in any of them.
Several United supporters plan to protest against the Glazer family's ownership again before the visit of Liverpool on Monday night and it emerged in midweek Sir Jim Ratcliffe is interested in buying the club.
"I can only say the owners want to win and the fans, we want them behind the club," Ten Hag said.
"And I can understand sometimes but I am not that long in the club to see all the backgrounds. We have to fight together and be unified."