Netgear WC7520 - ProSafe 20-AP Wireless Controller 参照マニュアル

Troubleshoot a TCP/IP Network Using the Ping Utility

Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request 
packet to the designated device. The device then responds with an echo reply. You can 
easily troubleshooting a TCP/IP network by using the ping utility in your computer.

Test the LAN Path to Your Wireless Controller

You can ping the wireless controller from your PC to verify that the LAN path to your wireless 
controller is set up correctly.

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From the Windows toolbar, click the Start button, and select Run.

In the field provided, type ping followed by the IP address of the wireless controller, as in 
this example:

Click OK.

You should see a message like this one:

Pinging <IP address> with 32 bytes of data

If the path is working, you see this message:

Reply from < IP address >: bytes=32 time=NN ms TTL=xxx

If the path is not working, you see this message:

Request timed out

If the path is not functioning correctly, you could have one of the following problems:

Wrong physical connections

Make sure that the LAN LED is on. If the LED is off, follow the instructions in 

on page 195.

Check that the corresponding Link LEDs are on for your network interface card and 
for the hub ports (if any) that are connected to your computer and wireless controller.

Wrong network configuration

Verify that the Ethernet card driver software and TCP/IP software are both installed 
and configured on your computer.

Verify that the IP address for your wireless controller and your computer are correct 
and that the addresses are on the same subnet.