I was checking the tangosol clearance xml files after a clue from one of the posts on empower. I compared the clearance and override files with the other cluster node, they are exactly the same. I restarted the server also but with no success. Not sure how to proceed from here. Here is the suggestion I got from empower:
Resolution:
The cause of this is the distributed caching and the following fix should resolve the issue.
Open “IntegrationServer\config\Caching\Tangosol-coherence-override.xml” file and override the multicast address settings as described below:
224.0.0.0
Restart the Integration Server.
#webMethods#B2B-Integration#Integration-Server-and-ESB