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Unable to renew ip address in XP Pro

After cleaning an XP Pro desktop PC from a virus, the lan adaptor is now not able to get its ip from the DHCP server.
If I try to repair the connection, it fails with an error of Unable to renew ip address.

I have tried uninstalling the adaptor and then reinstalling with the latest drivers, but this does not cure the problem

IF i give a static address it functions normally, but I want to user DHCP on this machine as I often use it at different locations.
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chakko
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Is the DHCP Client service running?
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optoma
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Frimton

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Thanks Chukko and Optoma

The DHCP service is running.

I will run Combofix and attach the log.  (It may be tomorrow!)
If combofix doesn't find/clean anything new or it still doesn't get a DHCP address you might try to reinstall the TCP/IP
http://www.petri.co.il/reinstall_tcp_ip_on_windows_xp.htm
Also, some searching found a possible solution.  It's worth a try if nothing else fixes it.
Rename your Computer and change the Workgroup Name.  If in a Domain then remove from domain, change computer name and rejoin Domain.  Reboot as needed.  It worked for some people.
 
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Combofix log attached
ComboFixLog.txt
Combofix removed some other junk.

Can you check the Lan card properties>Is Internet Protocol(Tcp/Ip) box checked?
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LAN is onboard.  Will try your suggestion in the morning.

Many thanks so far!!
Do other computers on your network have issues with renewing their IP address through DHCP? Is your DHCP server hosted through your router?
This is a WinSock2 corruption!

Follow the URL http://support.microsoft.com/kb/811259 for an explanation of the issue.

To fix it download any one of the many free Winsock fixes for XP.
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Sayed Maher's solution worked!

Many thanks to all
Hi there,

This is a common problem when removing viruses and spyware. The solution to your problem is running Winsock XP Fix. You can download it from here:
http://www.snapfiles.com/get/winsockxpfix.html

Cheers

Mike
Frimton,

Please award points and close this thread, take good care.

good luck,