I have a MX-3071 that has been sending to DropBox since January of 2019 and 2 weeks ago it stopped. Putting in the credentials and pressing the login button it holds the credentials in the boxes for about 2 seconds then they go blank with no error as if they never entered them. If I put in random user and password I get an authentication error. Customer has called DropBox and the support person says it not on their end and would not even open a ticket for them or us to reference. All other functions work normally including email and they are able to log into their DropBox from all their other devices. There was a firmware release on 6/30/22 and that has been installed. Has anyone had trouble with DropBox authentication?