Reset TCP/IP Stack and Winsock Catalog (Windows only)
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To refresh the TCP/IP stack, open the command prompt as an administrator by searching for "Command Prompt" in the start menu, then right-clicking on "Command Prompt" and selecting "Run as Administrator.
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In Command Prompt, issue the following command and then hit enter:
netsh int ip reset
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Issue the following command and then hit enter:
netsh winsock reset
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Restart your computer, and identify your IP address [1] once more, following the instructions for your IP address you obtain.