This is a full reset to your WindowsXP TCP/IP and Winsock Version 1 and 2. It can repair any problem shown below.

All Related TCP/IP Error messages:
“TCP/IP network transport is not installed” error message from active sync
TCP/IP driver missing from devmgmt.msc showing hidden devices
ipconfig produces immediate failure message :
Windows IP Configuration
An Internal error occured: The request is not supported.
Please contact Microsoft Product Support Services for further help.
Additional information: Unable to query host name.
“the specified device instance handle does not correspond to a present device” message regarding DHCP service in services.msc
net start tcpip >>> fails with system error 2, The system cannot find the file specified
ping error: “Unable to contact IP driver, error code 2″
Repair Local Area Connection: Failed to query TCP/IP settings of the connection. Cannot proceed.
“Tcp/ip Protocol Driver Service Failed To Start, system cannot find the file specified”
“The TCP/IP Protocol Driver service failed to start due to the following error: The system cannot find the file specified”

Method 1

Go to Start->Run->cmd

netsh int ip reset resetlog.txt
netsh Winsock reset
reinstalling network card

Method 2

Full uninstall of TCP/IP

Reference: http://support.microsoft.com/kb/325356

1. Locate the Nettcpip.inf file in %winroot%\inf, and then open the file in Notepad.
2. Locate the [MS_TCPIP.PrimaryInstall] section.
3. Edit the Characteristics = 0xa0 entry and replace 0xa0 with 0×80.
4. Save the file, and then exit Notepad.
5. In Control Panel, double-click Network Connections, right-click Local Area Connection, and then select Properties.
6. On the General tab, click Install, select Protocol, and then click Add.
7. In the Select Network Protocols window, click Have Disk.
8. In the Copy manufacturer’s files from: text box, type c:\windows\inf, and then click OK.
9. Select Internet Protocol (TCP/IP), and then click OK.
Note This step will return you to the Local Area Connection Properties screen, but now the Uninstall button is available.
10. Select Internet Protocol (TCP/IP), click Uninstall, and then click Yes. Restart PC.

Delete the following keys before reinstalling TCP/IP.

Run->Regedit
HKLM/system/CurrentControlSet/services/winsock
HKLM/system/CurrentControlSet/services/winsock2

Replace the 0×80 back to 0xa0, this will eliminate the related “unsigned driver” error that was encountered during the uninstall phase.

Return to “local area connection”> properties > general tab > install > Protocol > TCP/IP

If “Extended Error” occur, continue with the following steps:

esentutl /g c:\windows\security\Database\secedit.sdb
esentutl /r c:\windows\security\Database\secedit.sdb
esentutl /p c:\windows\security\Database\secedit.sdb
esentutl /g c:\windows\security\Database\secedit.sdb

Get back to your “local area connection” properties
Choose install > protocol > tcp/ip and try again

You are done. Reboot your PC now.
Good luck

Recommended software:
PC Optimizer – Repair PC Errors and Crashes, Boost PC Performance Up To 300%

Popularity: 17%