[DB Connect] java.sql.SQLRecoverableException: IO Error: Connection reset by peer, Authentication lapse 140354 ms.

[sylim_splunk]

I've recently migrated to a new server with Splunk 7.2.1 + DB Connect 3.1.1 which intermittently shows an issue as below;
Some dashboard running many panels of dbxquery getting these errors;

2 errors occurred while the search was executing. Therefore, search results might be incomplete. Hide errors.
[subsearch]: java.sql.SQLRecoverableException: IO Error: Connection reset by peer, Authentication lapse 88400 ms.
java.sql.SQLRecoverableException: IO Error: Connection reset by peer, Authentication lapse 140354 ms.

I had never had this kind of error before the migration to this new server.
It's not happening always but very frequently. Please help.

[sylim_splunk]

Based on the symptoms of "happening intermittently". It appears to be a known issue around "/dev/random" and "/dev/urandom".
Tried as suggested below and worked around it. ;

https://docs.oracle.com/cd/E13209_01/wlcp/wlss30/configwlss/jvmrand.html

1. Open the $JAVA_HOME/jre/lib/security/java.security file in a text editor.
2. Change the line:
  securerandom.source=file:/dev/random
  to read:
  securerandom.source=file:/dev/urandom
3. Save your change and exit the text editor.