Re: dhcp giving wrong ip address
From: Robert L [MS-MVP] (noreply_at_hotmail.com)
Date: 07/30/04
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Date: Fri, 30 Jul 2004 11:08:40 -0500
quoted form http://www.ChicagoTech.net
Can't obtain/renew IP addresses from the DHCP server
Symptoms: 1) you have a DHCP client which may not be able to obtain/renew IP
addresses from the DHCP server intermittently. 2) after setup a workstation
to obtain an IP address from DHCP, the machine can't ping others and
ipconfig /all shows Autoconfiguration IP Address. . . : 169.254.x.x.
Resolutions: 1) If this is XP, obtain the latest service pack for Windows
XP.
2) Use the Network Diagnostics tool to identify any failed settings. To do
this, go to Help and Support>Use Tools to view your computer information and
diagnose problems>Network Diagnostics>Scan your system. When the process
finishes, check for any items marked "FAILED" in red, expand those
categories, and view the additional details about what the testing showed.
3) Assign a static ip on the client and ping the DHCP server. If you can't
ping the DHCP server, check the connection and hardware.
4) If you can ping the DHCP after assigning static ip, check the DHCP
settings.
5) Make sure no firewall is running on your LAN.
6) Run Repair this connection if it is XP. Or use netsh to reset TCP/IP
configuration.
7) If it is win98/w2k, remove and reinstall TCP/IP.
8) Try to upgrade the new NIC driver.
9) Make sure you don't run out of IPs in the DHCP scope.
10) If you use a router as DHCP, you may want to upgrade the firmware.
-- For more and other information, go to http://www.ChicagoTech.net Don't send e-mail or reply to me except you need consulting services. Posting on MS newsgroup will benefit all readers and you may get more help. Robert Lin, MS-MVP, MCSE & CNE Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on http://www.ChicagoTech.net This posting is provided "AS IS" with no warranties. "exploreman" <anonymous@discussions.microsoft.com> wrote in message news:769d01c4764d$9142a5c0$a501280a@phx.gbl... >I have a SBS2K server running DHCP, We just connected a > LightPointe Laser fiber connection between two switches, > one connnected to our server and one in a new warehouse > 1/2 mile away. The fiber connection goes between the > switches. With the server connected to one switch, when I > connected a notebook with WinXP to the switch in the > other building and tried to get ip authorization from > dhcp I was given an ip address not in the range that I > have set up on the SBS2K server. I have the Server set > to use 192.168.16.1 to 254 for server assigned ip > addresses. The WinXP is getting assigned 169.254.102.30 > with a subnet of 255.255.0.0 Does anyone know why and > how to resolve the problem. Thanks for any help I am > supposed to have 4 new workstations on line by 5:00pm > tonight. Exploreman explore@removethis@man@hotmail.com
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