Today we were reconnecting a SRM server back to the VC after repointing to a new domain.
The operation failed with below error - similar to this KB - https://ikb.vmware.com/s/article/83185
but /var/log/vmware/srm/drconfig.log was empty
ERROR
Operation Failed
Host 'vcn-vclab.vmlab.local' could not be contacted.
solution was to Remove com.vmware.vcDr from vCenter MOB
https://kb.vmware.com/s/article/1025360
had to remove com.vmware.vcHms to get the replication working and it was the same error.