When trying enable replication between hyper-v servers you might get this error “The connection with the server was terminated abnormally (0x00002EFE)”
![](https://itsimple.info/wp-content/uploads/2021/06/HyperV-RepError.png)
This error usually means there is network problem like firewall blocking but it could be happening from other reason as wall, make sure :
- Firewall open on the replica server with the right ports, build in rules for hyper-v replication port enabled.
- The hyper-v version on the replica is the same or newer&supported then the incoming hyper-v server.
- If it is certificate base authentication, make sure all the servers involve included as subjects in the certificate the short name+FQDN name including the name of the hyper-v broker (if you are replicating from cluster), also make sure that you have set the right certificate on the replica server.
![](https://itsimple.info/wp-content/uploads/2021/06/HyperV-RepSettings.png)
As last option try enable replication from Powershell as I have notice that this error can happen if there were replication to dead/missing target :
Enable-VMReplication VN-name -ReplicaServerName "Replica Server Name" -AuthenticationType Certificate -CertificateThumbprint "22e9b591e5785e15e............" -ReplicaServerPort 443
Enable for all the VM on host :
Get-VM -ComputerName "Hyper-v host name" | Enable-VMReplication -ReplicaServerName "Replica Server Name" -AuthenticationType Certificate -CertificateThumbprint "22e9b591e5785e15e............" -ReplicaServerPort 443
Good Luck