Many friends of WinXP system installed the latest SP3 patch, found that the Internet speed is slower, so modified the TCP /IP connection limit patch, the result is even on the network not going. In the case of this situation, the first thing that people think of is still reinstalling the system, but in fact, there is no need to be so troublesome. We can check the system first and then find out the cause of the problem, and then it is easy to solve.
through the test check, the fault is manifested as follows:
1. After entering the DOS with the CMD command, enter ipconfig/all and the carriage return is displayed as follows:
Windows IP Configuration
An internal error occurred: Support request.
Please contact Microsoft Product Support Services for further help.Additional information: Unable to query host name.
2. Local connection display <; connected on ”, but the traffic is zero. The detailed status of the connection is blank;
3. Use the command prompt to enter “ping 127.0.0.1” get the following information: C:Documents and SettingsNewuser>ping 127.0.0.1Unable to contact IP driver, error code 2< Br> If your computer can't access the Internet and the same prompt appears, you may be experiencing the same type of failure.
Fault analysis:
Unable to access the Internet after modifying the number of connections, it 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?
Workaround:
Use flash memory from other normal use, and the native operating system Copy the tcpip.sys file in the C:WINDOWSsystem32drivers directory on the same computer to replace the original C:WINDOWSsystem32driverstcpip.sys file, and then restart the computer, and you can go online.
Summary: The patch that modifies the TCP/IP connection limit does 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.
The final Xiaobian wants to tell everyone that if you encounter WinXP network failure, it is best to check and test first. If you can find the problem, then find the corresponding solution, which is much faster than reinstalling the system. . Just like this tutorial, we checked that the tcpip.sys file is corrupted, just need to re-copy one to solve the problem, no more than 10 minutes before and after. I believe everyone can learn some emergency processing knowledge after learning this tutorial. .