This topic helps you troubleshoot an unsuccessful RPC over HTTP connection. This article explains how to do the following
- Verify that the ports are set correctly on the Exchange Server 2003 computer.
- Configure a Windows Server 2003 global catalog server to use specific ports for RPC over HTTP when Exchange is deployed in a single-server environment.
To verify that the ports are set correctly on the Exchange 2003 computer
- On Exchange Server 2003, run theÂ RPCDump tool (RPCDump.exe) to view the Exchange 2003 port information.
- Use theÂ RPCDump tool to verify all the following items for theÂ ncacn_http protocol:
- Verify that the information store is listening on port 6001.
- Verify that the Directory service proxy server is listening on port 6004.
- Verify that the Directory Service Referral service is listening on port 6002.
- If the Exchange back-end server is also a global catalog server, verify that the global catalog port is set correctly. See procedure below for instructions.
To configure a global catalog server to use specific ports for RPC over HTTP when Exchange is deployed in a single-server environment
- StartÂ Registry Editor.
- Locate and then click the following registry subkey:
- On theÂ Edit menu, point toÂ New, and then clickÂ Multi-String Value.
- Name the new registry valueÂ NSPI interface protocol sequences.
- Right-clickÂ NSPI interface protocol sequences, and then clickÂ Modify.
- In theÂ Value data box, typeÂ ncacn_http:6004, and then clickÂ OK.
- QuitÂ Registry Editor, and then restart the computer.