Windows 95 Does Not Send DHCP Request Packet

• Microsoft Windows 95
• Microsoft Windows 95 OEM Service Release version 2

IMPORTANT: This article contains information about editing the registry. Before you edit the registry, you should first make a backup copy of the registry files (System.dat and User.dat). Both are hidden files in the Windows folder.

SYMPTOMS

When you are using Windows 95 with a DHCP server to assign an IP address, you may be unable to connect to or view network resources using TCP/IP.

CAUSE

This behavior can occur if the DHCP key in the registry contains eight MAC address entries. When this occurs, a new one cannot be created for the current session.

RESOLUTION

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows 95. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

NOTE: For information about how to edit the registry, view the Changing Keys And Values online Help topic in Registry Editor (Regedit.exe). Note that you should make a backup copy of the registry files (System.dat and User.dat) before you edit the registry.

Use Registry Editor to remove all the keys except for the Dhcpinfo00 key from the following registry key:

   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\DHCP

STATUS

Microsoft is researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Windows stores the MAC addresses for each individual network adapter under the DHCP key in the registry. The key for the MAC address (and other information) is stored in a key in the following registry key:

   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\DHCP