If you are unable to establish a connection to the server, unable to load a web page or unable to browse and surf the Internet, even though network connection to modem or router appears to be OK, this may be because of a corrupt TCP/IP stack. If indeed this is the problem then the solution is to reset the TCP/IP to original state.
The “NetShell” utility, a command line interface for configuring and monitoring the Windows networking service is used to reset the TCP/IP settings.
Reinstall TCP/IP settings in Vista:
1. Click Start button and type “cmd” in the search area (without the quotes)
2. Right-click the cmd and select “Run as Administrator”.
3. In the elevated command prompt which appears after that, type “netsh int ip reset” (without quotes) and press enter
4. Restart the PC
This command will remove all user configured settings on TCP/IP stack and return it to original default state by rewriting registry keys that are used by the Internet Protocol (TCP/IP) stack to achieve the same result as the removal and the reinstallation of the protocol.
Reinstall TCP/IP settings in XP (and Windows 2003):
1. Open Start-menu and click Run and type cmd
2. In the Command prompt type “netsh int ip reset [ log_file_name ]” and press enter
3. Restart the PC.
The log file will record all the actions taken by the NetShell utility.
Wed Nov 25, 2009 10:59 pm