This article was previously published under Q219314
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After you install Windows NT Server 4.0 Service Pack 3 on a Windows NT-based computer that has the Dynamic Host Control Protocol (DHCP) service installed, TCP/IP addresses in one or more DHCP scopes may be displayed as "BAD". Entire scopes may be displayed this way when an internetworking device (such as a router), is not functioning properly, or the DHCP service receives an Internet Control Message Protocol (ICMP) packet coded with the destination unreachable flag.
To resolve this problem, obtain the latest service pack for Windows NT 4.0. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed that this is a problem in Windows NT Server version 4.0 Service Packs 3 and 4. This problem was first corrected in Windows NT version 4.0 Service Pack 5.