Hello, I am having a problem making RPC over HTTP to work in my network setup. I have 2 servers, one with DC\AD\DNS and the other with Exchange\IIS 6.0 with RPC over HTTP proxy installed. I have followed many of the deployment guide and advises to no avail. I used rpcdump /i to find if the ncacn_http protocol is responding to the corresponding ports and all of them are not working. Every other nc protocols are working fine. I also used Portqry and port 593, 6002, and 6004 are listening but their local and romote IP are all 0 with weird port numbers on the remote IP in the ranges above 10,000. I am hoping someone with this similar problem or any advice toward this problem can please help me. Thank you in advance for any help and advice. -Sango