Observed that Users were connecting to Services Node instead of User Node. I have checked Installation and Administration guide and Upgrade guide on this information. Everything seems correct. This is observed after upgrade done on the environment. Upgrade is done on cluster environment (two nodes hosted on single machine - 1 Service node and 1 Use node).
Yes using port defined in the server.conf file and web.config file of the IIS Server. I have tested by changing the port numbers and confirmed that based on that port configuration users connectivity established with the particular node.