Solve the Internet fault caused by tcpip.sys file corruption

Recently updated Windows XP SP3 patch, in order to download freely, I also downloaded a patch to modify the TCP/IP connection limit. After modifying the number of connections to 256, I suddenly could not access the Internet. This problem has been encountered before, and it also leads to reinstalling the system. In fact, the solution is very simple.

Fault performance:

1. Enter ipconfig/all with CMD command and enter as shown below:

Windows IP Configuration

An internal error Occurs: The request is not supported.

Please contact Microsoft Product Support Services for further help.Additional information: Unable to query host name.

2. Local connection display <; connected, but traffic is zero. The detailed status of the connection is blank;

3. Use the command prompt to enter “ping 127.0.0.1 to get the following information: C:Documents and SettingsNewuser>ping 127.0.0.1Unable to contact IP driver, error code 2

If your computer can't access the Internet and the same prompt appears, it may be the same type of fault that I encountered.

Failure Analysis:

After changing the number of connections, you cannot access the Internet. This should be caused by this operation. The modification of the connection number patch will modify the tcpip.sys file. Will it be a network failure caused by the file being damaged or lost?

Solution:

I use flash memory from other normal use. In the computer that is consistent with the native operating system, copy the tcpip.sys file in the C:WINDOWSsystem32drivers directory to replace the original C:WINDOWSsystem32driverstcpip.sys file, and then restart the computer, I can go online again.

Summary: Patches that modify the TCP/IP connection limit do modify the tcpip.sys file. Most patches will back up the original tcpip.sys file to the same directory before modifying the operation. If the modification fails, just find the backup file (such as tcpip.sys.bak) and restore it.