Checking for Connection Problems

Anytime your network refuses to send and receive data properly, your first troubleshooting step should be to check for problems with the physical connection between the local computer and the rest of the network Assuming your network connection uses the TCP/IP protocol, your most potent weapon is the Ping utility When you use the Ping command with no parameters, Windows sends four echo datagrams, small Internet Control Message Protocol (ICMP) packets, to the address you specify. If the machine at the other end of the connection replies, you know that the network connection between the two points is alive

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