Symptoms:
vSphere replication status are green on both site.
While configure replication, no replication server is listed on target site.
There is error message on dr UI:
"Unable to connect to vSphere Replication on port 8123"
VMware vSphere Replication 8.x
VMware vSphere Replication 9.x
hbrsrv service fails to start
Check hbrsrv log to determine the cause.