Hi,
I have tried to upgrade our environment from 2019.4 to 2020.2 but ran into an issue.
Main Pooler installation/upgrade went without issues but once APEs started upgrading all of them (4 in total) failed on the Configuration Wizard step with the following error:


I tried every possible solution for failed updates know to me (restarts, re installation of services, etc.) unfortunately without luck. I have verified that both databases (Orion database and Log database are on different servers) are accessible and working properly.
In the end I had to restore everything from backup and opened a support case (#00568578) but maybe some of you had a similar issue and were able to solve it.
I will appreciate any feedback