DOCUMENT:Q170278 09-AUG-2001 [winnt] TITLE :Demand-dial Connection Fails with Event 20050 PRODUCT :Microsoft Windows NT PROD/VER:4.0 OPER/SYS: KEYWORDS:kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 - Microsoft Routing and Remote Access Service Update for Windows NT Server version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Your attempts to connect to a remote router are unsuccessful. In the event log of one the routers you get the following error. The error may be logged on the router making or receiving the call: Event: 20050 Source: Router Description: The user connected to port has been disconnected because the computer could not be projected onto the network. The Rasipcp.log file on this computer shows information similar to the following: [158] 10:23:03: IPCP: ReconfigureTcpip(04878585 / ffffffff)... [158] 10:23:03: IPCP: ReconfigureTcpip done(1214) [158] 10:23:03: IPCP: ReconfigureTcpip=1214 The Ppp.log file on this computer will have the following error message: [158] 10:23:03:071: Notifying IPCP of projection notification [158] 10:23:03:071: RasIPCPProjectionNotification returned 1214 The logs on the other router do not indicate any errors. CAUSE ===== This error is caused by one of the routers requesting a bad IP address. In this case, the router is requesting an address of 133.133.135.4 and the routers are using a subnet mask of 255.255.255.252. Using a mask of 252 results in the following configuration: 133.133.135.4 - Network ID 133.133.135.5 - First Host ID 133.133.135.6 - Second Host ID 133.133.135.7 - Subnet Broadcast ID Therefore, the IP address being requested is a Network ID and not a Host ID. The same error will occur if the Subnet Broadcast ID (133.133.135.7) were requested. RESOLUTION ========== Change the demand dial interface to request a valid Host Address or to use an IP address assigned by remote router. Additional query words: rras ====================================================================== Keywords : kbnetwork Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbAudDeveloper kbRRASNTSearch kbRRASNT400 Version : 4.0 Issue type : kbinfo ============================================================================= 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 2001.