See also: https://forum.mikrotik.com/viewtopic.php?f=2&t=120046
After upgrading Mikrotik router firmware at multiple locations to 6.38.5, multiple idrive installs started failing (but not consistently, and sometimes took 1-2 weeks before it started failing on the backups).
That should be impossible if the idrive client traffic to the servers is an encrypted stream of traffic?