Cisco Cable Modem Unable to Receive IP Address from Windows NT 4.0 DHCP Server

ID: Q242183

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 use a Cisco cable modem, you may not be able to receive an Internet Protocol (IP) address from a Windows NT 4.0 Server-based computer using Dynamic Host Configuration Protocol (DHCP). The server generates an "error 10040" error message.

CAUSE

This behavior occurs because the cable modem client sends a packet larger than the maximum length of the DHCP packet as defined in the RFC (576 bytes).

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0. For additional information, please see the following article in the Microsoft Knowledge Base:

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 6.

Additional query words:

Keywords : NT4SP6Fix
Version : winnt:4.0
Platform : winnt
Issue type : kbbug