I am hoping someone could explain to me why we would need to unblock port 80 incoming (as I am told W2k3 Sp1 firewall only blocks incoming ports) to our CMFPSv3 application servers. My group does not manage the web interface (v3) servers but the people who do are setting up new ZDC(2005.04) and in test using these we can not get connected to our servers using a combination of the test WI and these ZDC. ZDC are the SSL relay/xml brokers? In the WI config. When we connect to the WI and try to logon we can not get connect to the application servers. The application servers are not identified as the XML brokers, so I am told, in the WI config. I checked the firewall log and there on connections coming in on port 80 from the ??? When I allow port 80 in globally it works. IIS is not on these servers. The other option that worked was "trust requests sent to the Citrix XML Service" but from what I read this should not be on on these servers as they are not "pointed" to by the WI. So can anyone tell me why these connections would be using port 80 and what would be using them. Thanks a bunch. Doug Stratton Technology Engineering Services, ISM Canada Together with Shared Services BC Telephone: 250-704-1861 Fax: 250-704-1889 E-mail: <mailto:stratton@xxxxxxxxxx <BLOCKED::mailto:stratton@xxxxxxxxxx> >