- Joined
- Apr 10, 2012
- Messages
- 26
- Reaction score
- 6
I have created backups and uninstalled version 18 for 5 locations. 3 locations install version 20 correctly and 2 are giving me the error "An Installation process is already running from another connection. Only one client session is allowed to launch and finalize the 3CX installation process." I have used Revo to uninstall, rebooted. Not sure what else to do now. These are newish Windows 11 systems. All 5 are the same. Unfortunately, I cannot go back to version 18 because all 5 locations are bridged and 3 are now on 20. What next?