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How to Refresh TCP/IP in Win 7?


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rrrld rrrld is offline
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19-Nov-2009, 10:32 PM #1
How to Refresh TCP/IP in Win 7?
Hello

How do you refresh TCP/IP in Windows 7?

Is there a command line command eg netsh that you use in Xp/Vista?

Please outline step by step.

Thanks.
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19-Nov-2009, 11:30 PM #2
goto Start Programs>Accesories>Command Prompt

once in command prompt window, the command to release and renew your TCP/IP address/settings is:

ipconfig /release

ipconfig /renew

For other ipconfig command line parameters, type:

ipconfig /?

...and it will give a listing of relevant command line params and an explanation of each.

Hope this helps...if not you are welcome to hit me up here or with an email.
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19-Nov-2009, 11:48 PM #3
NETSH commands:

netsh interface reset all - clears interface information
netsh interface ip reset - clears ip settings (Resets TCP/IP)
netsh winsock reset - resets winsock catalog

Beware of these commands!

Reseting your winsock deletes all third party LSP which some antivirus/firewall programs use

Reseting your ip delete any custom ip settings such as static ip address, dns servers, and any user defined tcp parameters

Last edited by helpful; 19-Nov-2009 at 11:58 PM..
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20-Nov-2009, 05:33 AM #4
Refresh TCP/IP
thanks for that :-)

however, i was wondering if there was a netsh specific command for windows 7 to refresh tcp/ip
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20-Nov-2009, 06:03 AM #5
The commands haven't changed much from XP/Vista to Win7... It's basially the same commands!
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25-Nov-2009, 07:38 PM #6
The only commands I have noticed changing are additional Ipv6 commands, because now ipv6 is turned on by default in Vista/Windows 7.
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25-Nov-2009, 10:02 PM #7
Is this what you're looking for?

(From a JohnWill post)

TCP/IP stack repair options for use with Vista or 7.

Start, Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log

Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log

Reboot the machine.
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25-Nov-2009, 10:03 PM #8
netsh winsock reset resets the winsock configuration to default settings

netsh winsock reset catalog rebuilds the winsock keys (this is the command that will delete any custom LSP's some third party softwares add, you will have to reinstall the software)


This one documented for XP thru Vista, I assume it works for W7, will rebuild the tcp/ip protocol without removing custom LSP's. Creates a log on the root of C. It rewrites these 2 registry keys
SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\
SYSTEM\CurrentControlSet\Services\DHCP\Parameters\

netsh int ip reset c:\resetlog.txt

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