It's a little strange. The error log does not mention that the "Transport Protocol should be REST" - it only mentions the "java.net.SocketException: Connection reset" error.
However, the context for the message appears to be around the time that the node it attempting to establish the secure communications with the remote host using SSL.
Have you installed the relevant SSL CA Certificates for the remote host?
You can find the 'SSL Connections Guide for Lavastorm.pdf' document in your BRE installation, typically it is located here:
C:\Program Files\Lavastorm\LAE6.1\docs\lal
The document for LAE 6.1.4 is also attached for your convenience.
Note, for a Windows install of Lavastorm, the keytool executable is typically located here:
C:\Program Files\Lavastorm\LAE6.1\jre\jre\bin
and the java keystore ('cacerts' file) would be located here:
C:\Program Files\Lavastorm\LAE6.1\jre\jre\lib\security
All CA certs in the certification chain need to be installed in the java keystore.
Can you also confirm the version of Lavastorm that you are using. Thanks
Attached files
SSL Connections Guide for Lavastorm.pdf