RFC connection is not available 
As checked with the user, RFC is working fine from RCE to CLSYS. 
 
Issue at CLSYS side as user password is not working , as per security team, user has been submitted a new iris request REQ000022743470 to update the password and same is working by security team. 
 
As per the attachment, we are closing is as RFC is working fine from RCE. 
PFA