Unable to start ECE DC Node - either OCECE is down or could not be located

Dear Team ,

Recenlty we have upgraded our ece to 11.3.0.1.0 and installation was successful , but after starting the ocomc nodes, we were not able to start ece dc node .

The following error is reported in the ece dc node log .

We have checked the UDCEnvironment file and it looks fine .

2017-01-11 15:57:05;INFO ;inititlaizeECEClient() - initializing ECE client#EOR#

2017-01-11 15:57:38;FATAL;Connectivity; Error connecting to OCECE; Node could not be started, either OCECE is down or could not be located.#EOR#

2017-01-11 15:57:38;FATAL;Connectivity; Error connecting to OCECE; Failed to intialize the ece interface;

com.nt.udc.exceptions.NodeStartException: Failed to intialize the ece interface