James, 1. What are you using for the DHCP Server 2K3 or other (router etc)? 2. Have you got one of the servers set with an invalid lease time. You could always try assigning a specific address per MAC address just to see if the problem goes away. If you find that the IP address doesn’t match how you have defined it then there is another DHCP Server on the lan somewhere.
3. Does your server have two network cards in it belonging to two subnets? If so then the client may well gavhe used interfact A to get an IP address belonging to to network A. However if the client is actually connected to the network where the second interfact (card) belongs you will see these messages. 3. If all else fails assign static IP addresses. For more Info on why you can get DHCPNACKs see: http://www.microsoft.com/technet/prodtechnol/windows2000serv/reskit/cnet/cnc b_dhc_nxxi.mspx?mfr=true or http://tinyurl.com/2zhfgo Dave Crozier -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of James E Harvey Sent: 15 May 2007 16:26 To: 'ProFox Email List' Subject: [NF] Problematic DHCP The last couple of weeks our users have been having issues getting logged on to our domain due to IP address not being assigned properly (169 rather than a 192) The system event log shows the following error message with an Event ID of 1002: "The IP address lease %1 for the network adapter with MAC address %2 has been denied by the DHCP server %3 (The DHCP server sent a DHCPNACK message)." We thought it was a rogue router with DHCP turned on but it turns out that wasn't the case. If we do the "repair" through the GUI, or ipconfig /release&renew at the command prompt we can usually get the user a valid IP address and they're good to go, until the next time they need to log on. We can't see where anything on the DHCP server that appears obviously out of norm... Any thoughts would be appreciated. TIA James E Harvey Hanover Shoe Farms, Inc. M.I.S./Corresponding Officer Off: 717-637-8931 fax: 717-637-6766 email: [EMAIL PROTECTED] [excessive quoting removed by server] _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/[EMAIL PROTECTED] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
