Unable to configure teradata Express under monitored systems in viewpoint

Viewpoint
Teradata Viewpoint is Teradata's strategic and innovative SOV (single operational view) for Teradata DB, Aster, and HDP Hadoop systems management and monitoring that enables Teradata's Unified Data Architecture (UDA).
Highlighted
Tourist

Unable to configure teradata Express under monitored systems in viewpoint

Installed Teradata Express 16.20. Database and viewpoint services are up and running and was able to connect through Teradata TTU Studio within the VM and also from the host where this VM is hosted.

 

But I was unable to setup the database in viewpoint monitored systems.

 

1. Access viewpoint through the URL http://localhost:9080/ on the VM

2. Navigate to Admin - > Monitored systems -> click on + and select 'Add Teradata System'

3. Enter the details:

   TDPID: localhost

   Login Credentials: tdwm and viewpoint. Clicking on TEST button gives success tick.

   Select the time zone

4. Click on Apply give hte following error:

 

"The teradata database system is not a Teradata Express Edition."

 

Viewpoint logs indicate the following:

TDExpress1620_Sles11:/var/opt/teradata/viewpoint/dcs/logs # cat error.log
2019-06-23 21:07:22,980 ERROR [main] {} ehcache.Cache.<clinit>(128) - Unable to set localhost. This prevents creation of a GUID. Cause was: TDExpress1620_Sles11: TDExpress1620_Sles11: Name or service not known
java.net.UnknownHostException: TDExpress1620_Sles11: TDExpress1620_Sles11: Name or service not known

 

 

What am I missing here please ?