There is a persistent connection maintained between inSync AD Connector Machine and Druva Servers, in case AD Connector fails to connect, following alerts are sent to inSync Administrators:CloudApps backup won't get triggered if the AD connector is not connected.
AD connector is not connected, inSync Administrators has to Fix the inSync AD connector status
Check if the registration is required on the inSync AD Connector GUI.
Admin has to check if any connectivity issues between AD Connector and Druva Cloud, (firewall whitelisting, Antivirus recommendations, Port 443 etc.)
To know more about AD Connector configuration, please go through this Article
In case Admin is facing errors while registering the AD Connector please click on this troubleshooting article