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How to repair and reset the Windows TCP/IP stack ?

The TCP/IP stack Winsock settings in Windows can sometimes get corrupted, causing various problems with internet connectivity. Such corruption can be caused by various networking software installations, or virus/malware infections.

Corrupt Winsock can cause various networking errors, including inability to surf the internet with "Page cannot be displayed" browser error, even though the network card appears to be connected. Sometimes the ICS service is terminated as well.

To reset the Windows Vista/7/8/10 TCP/IP stack:

1. Run Elevated Command Prompt:
- Click the Start button
- Type: cmd in the Start Search text box.
- right-click and choose "Run as Administrator" (alternatively, press CTRL-SHIFT-ENTER to run it as administrator), and allow elevation request
2. Type: netsh winsock reset in the shell and hit Enter
3. Type: netsh int ip reset and hit Enter again.
4. Restart the computer

Alternatively, if you use the TCP Optimizer, just click the "Reset Winsock" and/or "Reset TCP/IP" in its "File" menu, then reboot.

  User Reviews/Comments:
by anonymous - 2008-08-14 21:23
Fixed all issues.

Thank you!!
by ralph_ayos - 2009-04-22 04:50
can booster eliminate trojan horses and other viruses???? pls. answer.......
by MORGO19 - 2009-04-29 13:42
by Rockford - 2009-07-08 07:37
reset the stack and it's all good, my dell service agreement wanted to charge me to send somebody round to reset it for me! At least they told me that the tcp/ip stack needed resetting and I just googled it...

Cheers everybody

by Paulp - 2013-12-08 18:12
I went to Microsoft and they were no help because they wouldn't tell me what I needed to do to accomplish the elevate command. I followed your instructions and I am back running the way I should be. Thank you so much. This problem occurred because of a malicious program called Scorpion Saver. It has been troubling my computer for weeks. Hopefully this is the last place it was embedded.
by Jaxx - 2015-02-05 03:18
Thank YOU!
TCPOptimizer program works super!!!
My problem was: Internet connected, but browsers not working.
using: winsock reset and ip reset

It fixed all of my browsers! :)
by anonymous - 2015-07-26 22:46
I tried this command. it didn't work for me :<
still trying to fix the issue on the laptop. running Vista older version of firefox still connects but NOTHING else. and if I upgrade firefox..well it stops working too.
by Ebin - 2016-08-06 09:05
My problem is solved.
Thank you very much!!!!!
by anonymous - 2017-12-22 09:30
This worked for me after other fixes did not. Running Windows 10 Home on an HP desktop. The crucial command appeared to be the Winsock reset; when I had only done the "netsh int ip reset" command, it would work for the first reboot, but not last beyond that. Resetting Winsock has solved the problem (permanently, I think).
by K33pSm1l1ng - 2021-10-28 12:09
Nice step by step guide.Some of my downloads via my internet browser were capped at 2 mbit/s but resetting the tcp/ip stack, fixed it :)
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