Trying to access ESB queues and topic by creating durable subscriber but unable to do so as I am getting the below error

[Venkata_Kasi_Viswanath_Mugada1 (Kasi Mugada)]

Though my reply on this reference post below (see points #3 and #4), was for Enterprise Manager, your issue seems to be about IS ← → UM connectivity than anything else from the error.

Unable to connect Enterprise Manager with RealM(UM)

Check the following - If the realm URL in the Enterprise Manager (EM) correct - it might be connecting to the default URL If you’re using the same version of EM - I’ve had issues when I mix versions If the realm DNS/IP is reachable from the machine where your EM is located If you’re accessing the EM from your machine and you still have issues, then try and use the EM that you’ve installed on the UM server - or, vice-versa KM

KM