VMware Cloud Director Availability adapter instance is not connecting in Aria Operations

Products

• VMware Aria Suite

Issue/Introduction

• Saving VMware Cloud Director Availability adapter instance shows this error:
  
  Wait for response of task 'Test connection' with id 'xxxxxx' is timed out for collector 'vRealize Operations Collector-xxxxxxxxx'
  
  
• VMware Cloud Director Availability adapter shows the exception:

com.vmware.vcda.vrops.connector.CloudSettingsProvider.isValidC4 - Unable to connect to cloud instance at https://xxxxxxxx:8048
com.vmware.exception.ConnectTimeout: Connect to xxxxxxxxx:8048 [xxxxxx/xx.xx.xx.xx] failed: connect timed out

Environment

Aria Operations 8.18.x

Resolution

 Review If they are the firewall rules on the target endpoint of VMware Cloud Director Availability adapter the rules might be stopping Aria Operation from communicating with VMware Cloud Director Availability adapter.