Unable to launch MPI on Windows 2012

I have been using Intel MPI library on a Windows 2008 R1 server for few years without any issues. However, we recently switched to Windows Server 2012 R2, and now I can't launch MPI due to following error, when I use the command line -

mpiexec -n 1 -localroot  ./eDR_IMC.exe

" Error while connecting to host, No connection could be made because the target machine actively refused it. (10061)
Connect on sock (host=eDR-IMC2, port=8676) failed, exhaused all end points
Unable to connect to 'eDR-IMC2:8676',
sock error: Error = -1"

I did ensure all windows firewall settings were disabled.

Please help resolve this issue.

Thanks,

SashiBala