ipconfig

If your computer can’t communicate with others on your LAN, after you check the Event Log and Device Manager, use the ipconfig command-line utility to see whether your computer has a valid IP address. Check other computers on the LAN, too, to ensure that they do as well.

Open a Command Prompt window by typing cmd at the Start screen and then selecting Command Prompt. Type the following command and press Enter:

ipconfig /all

The results should look something like this:

Windows IP Configuration    Host Name . . . . . . . . . . . . : myvpc-hb    Primary Dns Suffix  . . . . . . . : mycompany.com    Node Type . . . . . . . . . . . . : Hybrid    IP Routing Enabled. . . . . . . . : Yes    WINS Proxy Enabled. . . . . . . . : No Ethernet adapter ...

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