You can see the error message "Unable to replicate image due to network errors - 12017/12019" on the screen during image replication.
This error will be shown if,
You can resolve this issue as follows:
For network related issues, you can retry Image replication after some time.
At times, Anti-virus / Network Firewall might forcefully close the handle to save the network bandwidth for other processes. In this case, disable the Anti-virus / Network-Firewall and retry Image replication.
Keywords: Image replication, network issues.