Microsoft KB Archive/240859

= XADM: Exchange Administrator Program Stops Responding When Connecting to an Exchange Server Computer over the Internet =

Article ID: 240859

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q240859



SYMPTOMS
When you connect to an Exchange Server computer over the Internet, the Exchange Server Administrator program (Admin.exe) stops responding (hangs). In Task Manager, the Administrator program is listed as "Not responding."



Troubleshooting Steps

 * 1) Ping the Exchange Server computer by name to verify successful name resolution. If necessary create a HOSTS file for troubleshooting purposes.
 * 2) Statically map the ports for the information store, directory service, and system attendant on the Exchange Server computer.
 * 3) Configure any firewall or router involved to allow TCP connections to be made to the ports mapped for the information store, directory, and system attendant, as well as to port 135. Exchange Server uses a well-known static port (port 135) to listen for Administrator connections to the remote procedure call (RPC) Endpoint Mapper Service. However, after the Administrator program connects to this socket, Exchange Server then re-assigns the program three random ports to use when communicating with the information store, directory, and the system attendant. This makes it impossible to allow these through the firewall without forcing them to be statically assigned.

Keywords: kbprb KB240859

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