Backup archiving caused cluster join to fail and Replica to enter Quarantine
A manual backup was performed prior to enrolling a Replica in the Cluster. The backup had completed, but was in the process of archiving in the background. The Safeguard VPN became saturated, which cause the join process to fail and the Replica to enter Quarantine.
An enhancement has been submitted to provide an option to prevent the archive from happening, or to postpone it to a later time, so that it does not interfere with the join process.
Attempt to schedule your procedures to prevent these operations from overlapping.