2023-01-03 21:01:03,605 - session-tracker - ERROR - Empty answer from server "<server-hostname>" 2023-01-03 21:01:03,606 - session-tracker - ERROR - Failed to get version of operating system of "<server-hostname>" 2023-01-03 21:01:03,606 - session-tracker - ERROR - session-tracker.wmi_query.<server-hostname>: Failed to retrieve Windows version of Domain Controller "<server-hostname>" [80]