Web Interface with a Local Config can only be configured an managed from that machine. You cannot use AMC from another server to manage that instance. Joe From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of alan tropper Sent: Wednesday, April 15, 2009 11:08 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] Web Interface Query Hi All, I am trying to get my citrix web interface 4.5 server to be accessed from all my other citrix servers using the AMC discovery, however I keep on getting the following error message: Ensure that the name is correct, the server is contactable, and that a supported version of Presentation Server or XenApp is installed. 523 I have opened up the firewall for TCP 135 and locked the registry on the servers to use ports 8000 - 9000 and even amended local policy to allow the ctx_ConfigMgr account the right to log on as a service and a batch. The discovery still fails and I have since looked at the COM+ settings and Im still getting the errors. As I didn't set up the web interface server I have just noticed that there is no citrix XML service running on the server and in the AMC on the web interface server under Web Interface tab details I can see the Configuration Source is listed as a 'Local File' could this be why I cannot administer the web interface server from the other citrix AMC's. Any help would be greatly appreciated? Thanks Alan