JCO Communication Error

Hi All,

We are facing an issue regarding JCO communication error , while executing Tcode SXMB_MONI.
We have checked all the RFC's,  they are working fine  we have configured system  according.

All the Configuration in  JAVA stack are also done and working fine.

For refrence http://help.sap.com/saphelp_nw73ehp1/helpdata/en/48/cd3b40dd6837e3e10000000a42189d/content.htm  following document.

Bt still we are getting the same error. Any suggestion 

Thanks in Advance.