The public IP address of the Exchange server has changed.
I have updated the Autodiscover DNS record and have waited couple of days for the DNS change to propagate.
After the change, at least one Outlook 2016 client can't connect. It keeps asking for password and it looks like it has not updated the IP address.
How can I force it to update the IP address? When I go to 'accounts-> change -> more settings' there are no visible fields for servers' address.