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Apparently, there's a command:

netsh int ip reset

which is known to reset TCP/IP settings for Windows XP/Vista/7 and I'm not sure how it works correctly on Windows 8.

enter image description here

When I typed the command under command prompt (Admin) I got two errors as pointed out in the screenshot:

Resetting , failed.
Access is denied.

At the end it said Resetting , OK! So, how do I confirm if it worked or not?

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Wrong screenshot? – XST Jun 28 '13 at 3:30
Just double checking, are you sure you were in an elevated command prompt? – Keltari Jun 28 '13 at 3:42
@XST: Wrong? How is it wrong? Here's a link to the screenshot which I posted: to make sure if you are seeing things correctly. – cpx Jun 28 '13 at 4:14
@Keltari: Yes, you can also notice that on the title bar of command prompt in the screenshot where it says "Administrator: Command Prompt". – cpx Jun 28 '13 at 4:18
Guys please hold on a second, it seems something is really broken up with this site. – cpx Jun 28 '13 at 4:57

run ProcMon in background while runing the command and filter for Access Denied errors in the Result column.

share|improve this answer
When I ran this it stated that it was HKLM\System\CurrentControlSet\Control\Nsi\{eb004a00-9b1a-11d4-9123-0050047759bc}‌​\26 that netsh was getting access denied on. Added permissions to this reg key, and it worked. – uNople Sep 2 '13 at 23:35
nice to hear that it worked. – magicandre1981 Sep 3 '13 at 3:59

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