Symptoms
You try to install Acronis Cyber Backup 12.5 or Acronis Cyber Protect 15 on a machine where a NIC is disconnected or missing. Both Management Server and Agent are selected for installation.
At 99% of installation progress you get an error:
Registration failed.
Backup agent: "Failed to connect to the management server"
Manual registration fails with an error: ZmqGW return empty AMS addresses list
Cause
Issue in the product.