Netgear R7900 - Nighthawk X6—AC3000 Tri-Band WiFi Gigabit Router ユーザーズマニュアル

Most network 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 
troubleshoot a network using the ping utility in your computer or workstation. 

You can ping the router from your computer to verify that the LAN path to your router is set up 
correctly.

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From the Windows toolbar, click Start and select Run.

In the field provided, type ping followed by the IP address of the router, as in this example:
ping www.routerlogin.net

Click the OK button.

You 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, one of the following problems might be present:

Wrong physical connections

For a wired connection, make sure that the numbered LAN port LED is lit for the port to 
which you are connected.

Check that the appropriate LEDs are lit for your network devices. If your router and 
computer are connected to a separate Ethernet switch, make sure that the link LEDs are 
lit for the switch ports that are connected to your computer and router.

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 router and your computer are correct and that the 
addresses are on the same subnet.