DOCUMENT:Q297002 06-AUG-2002 [winnt] TITLE :"The RPC Server Is Unavailable" Err Msg and Events 5718 and 3013 PRODUCT :Microsoft Windows NT PROD/VER::4.0 OPER/SYS: KEYWORDS:kberrmsg kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 - Microsoft Windows NT Server, Enterprise Edition version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you try to synchronize a backup domain controller (BDC) with the primary domain controller (PDC) of a domain, the synchronization of the Security Accounts Manager (SAM) database may not succeed. You may receive the following error message on the BDC: The RPC server is unavailable The System Event Log of the BDC may display the following information: Event ID: 5718 Event Type: Error Event Source: Netlogon Description: The full synchronization replication of the name database from the primary domain controller failed with the following error: Event ID: 3013 Event Type: Error Event Source: Rdr Description: The redirector has timed out a request to . CAUSE ===== This behavior can occur if the communication link between the BDC and the PDC does not support large packet sizes, for example, packets that are more than 1024 bytes in size. RESOLUTION ========== To resolve the behavior, adjust the communication link to support larger packet sizes. This setting is usually adjusted on a router. MORE INFORMATION ================ To see whether there is a communication problem between the BDC and the PDC, use packets of increasing sizes and try to ping the PDC by IP address. You can use the ping command with the -l option. Also, you can use the Tracert.exe utility to determine where the packets are being dropped. Additional query words: ====================================================================== Keywords : kberrmsg kbnetwork Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400 Version : :4.0 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.