User keeps getting the pop up to log in Outlook when more than 1 email account is added

Hello,

We're having an issues where our users keep having to log in to Outlook whenever they connect to the server when they have more than 1 email account added to Outlook.

Users with only 1 mailaccount don't have this problem.

We use fslogix profiles for our users.

Any idea what could be the cause and how we can fix this?

Kind regards,