Error: "Unable to connect to vCenter" when carrying out reverse failover.

Products

• VMware Cloud Director

Issue/Introduction

• Reverse failover tasks are failing for all replications. 
• The following error is seen from the provider portal:
  Unable to connect to vCenter ########-####-####-####-############
• This is an on-prem to cloud setup. Reverse is being carried out from cloud site to On-prem site.
• System health on source and destination sites are healthy.
• Connecting to each endpoints(manager,replicator,tunnel) for the cloud site showed the following error at the top of the Settings page: 
  Certificate differs from the expected one.
• There is also a warning next to the Lookupservice in the same Settings page for each component:
  Unable to create Lookup Service gateway

Environment

VMware Cloud Director Availability 4.7.3

Resolution

To resolve, apply the resolution from the following:

1. Error: "Unable to create Lookup Service gateway" while creating new replication
2. Carry out the reverse replication operation : Reverse a Replication
3. Following a successful reverse, carry out a failover or migrate to finish the failover process to the actual source site.

Additional Information

Failover of a replication

Migrate a replication