Unable to register RM 6.0.6.1 with JTS 6.0.6.1, installed in a distributed topology

JTS-CCM-GC 6.0.6.1 installed on Windows VM1

RM 6.0.6.1 installed on Windows VM2

Using basic user registry and both servers are having same basicUserRegistry file

SSO is enabled on both by adding below lines in server.xml

        <webAppSecurity singleSignonEnabled="true"/>

       <webAppSecurity ssoDomainNames="windows-vm1-jts-server" />

       <ltpa keysFileName="resources/security/ltpa.keys" keysPassword="WebAS" expiration="120" />

"ltpa.keys" files are same on both the VMs

Issue:

During RM application registration step of JTS setup below error is seen:

The webpage at https://windows-vm2-rm:9443/rm/customSetup?embed=true#/steps/1&parent=https%3A%2F%2Fwindows-vm1-jts%3A9443%2Fjts%2FcustomSetup%23%2Fsteps%2F18 might be temporarily down or it may have moved permanently to a new web address.

When I login to RM/admin URI and Advanced Properties, "Pending oAuth Consumer Registration Info" has a value as below:

<rdf:RDF    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"    xmlns:j.0="http://jazz.net/xmlns/foundation/1.0/" >   <rdf:Description rdf:nodeID="A0">    <j.0:oauthConsumerPreAuthId>jts_user</j.0:oauthConsumerPreAuthId>    <j.0:oauthConsumerName>Jazz Team Server</j.0:oauthConsumerName>    <j.0:oauthConsumerTrusted>true</j.0:oauthConsumerTrusted>    <j.0:oauthConsumerSecret>secret</j.0:oauthConsumerSecret>    <j.0:oauthConsumerKey>key</j.0:oauthConsumerKey>    <rdf:type rdf:resource="http://jazz.net/xmlns/foundation/1.0/OauthConsumer"/>  </rdf:Description></rdf:RDF>

How to resolve this issue and successfully register RM on JTS in distributed topology.