How do I reinstall the TCP/IP protocol driver on Windows 7?
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3 Answers
Reinstall and reset TCP/IP (Internet protocol)
- Click on the Start button.
- Type Cmd in the Start Search text box.
- Press Ctrl + Shift + Enter keyboard shortcut to run a command prompt as administrator. Allow elevation request.
- Type
netsh int ip resetin the command prompt shell, and then press the Enter key. - Restart the computer.
Note: if you're using manually assigned TCP/IP settings, take notes as this will reset to the default 'automatically obtained'.
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would you mind telling us a little more detailed about your problem?– Molly7244Commented Aug 28, 2009 at 2:18
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whats the difference between doing this, and using "add new hardware" then select "windows tcp ip protocol driver" ? this work fo XP, in win7 there's no such option ...– user8228Commented Aug 28, 2009 at 2:23
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are you looking for TCPIP.SYS? please tell us exactly what you want to achieve.– Molly7244Commented Aug 28, 2009 at 2:53
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well, I want to reinstall all the files and settings related to the tcp/ip driver.– user8228Commented Sep 11, 2009 at 22:17
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funny, only this afternoon one of my windows 7 VMs crashed due to a corrupt driver (tcpip.sys), as suggested, a repair installation solved the issue.– Molly7244Commented Sep 11, 2009 at 22:50
Reinstall and reset TCP/IP (Internet Protocol) for Windows 7 (32 and 64):
- Click on Start button.
- Click on Accessories.
- Right click on Command Prompt and select Run as Administrator.
- Type netsh int IP reset
C:\resetlog.txtin the Command Prompt shell, and then press the Enter key. Do not restart computer. - Type netsh winsock reset in the Command Prompt shell, and then press the Enter key.
- Restart the computer.
You'll find a log with the changes in C:\resetlog.txt.
I have used this a thousand times. How to reset TCP/IP by using the NetShell utility provides an EXE file to automatically do that reset for you.
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it's just an automated version of "netsh int ip reset"– user8228Commented Aug 28, 2009 at 19:27