DOCUMENT:Q141184 08-AUG-2001 [winnt] TITLE :DHCP Server Shows Active Leases for Non-Existent RAS Servers PRODUCT :Microsoft Windows NT PROD/VER:3.51 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation version 3.51 - Microsoft Windows NT Server version 3.51 ------------------------------------------------------------------------------- SYMPTOMS ======== A DHCP server has active leases for Remote Access Service (RAS) servers, but there are no RAS servers running on the network. NOTE: You can tell that the addresses are for RAS by the telephone icon in the active lease window. CAUSE ===== When the RAS servers configured to use TCP/IP were previously active, they received leased IP addresses from the Dynamic Host Configuration Protocol (DHCP) server. When the RAS servers were configured to only allow users to dial out those leased IP addresses were not deallocated by the DHCP server. There were Remote Access servers installed (configured to Receive calls and to dial-out) and configured for TCP/IP at one time, and they were allocated addresses by the DHCP server, but they were changed to dial-out only through the NCPA. RESOLUTION ========== 1. Start Registry Editor and go to the following subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services \RemoteAccess\Parameters\IP 2. To delete the IP key, choose Delete from the Edit menu. Be sure that the only key that appears under the Parameters key is the NetbiosGateway key. STATUS ====== Microsoft has confirmed this to be a problem in Windows NT version 3.51. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available. Additional query words: prodnt ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS351search Version : 3.51 ============================================================================= 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.