This article was previously published under Q189283
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Adding a large number of DHCP reservations (570+) in a single scope willcause one client to disappear from the list of Active Leases. This makesthe client unmanageable from DHCP Manager. The Resource Kit utility,Dhcpcmd.exe, also fails to list reservations beyond the 570th one.
The Windows NT 4.0 DHCP service and management tools exhibited a problemwith enumerating large numbers of clients.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. 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 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.