Refer the following KB articles 165111 199326 262112 230602 154624 (How to configure site connector between untrusted domains) -----Original Message----- From: NGUYEN HONG HA [mailto:HANH.EVNIT@xxxxxxxxxx] Sent: Tuesday, March 30, 2004 1:11 PM To: [ExchangeList] Subject: [exchangelist] ID no: DS_E_COMMUNICATIONS_PROBLEM http://www.MSExchange.org/ have Exchange 5.5 Server installed on two Windows 2000 member servers in different domains. Both servers can ping each others by their IP and their name also. When I tried to connect them by using site connector with the same user account and password of the two domain but the following message appeared: ID no: DS_E_COMMUNICATIONS_PROBLEM. Can you help me to solve this problem. Thanks in advance. ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------