Quick Tips
This section describes tips for troubleshooting some common problems.
Sequence to Restart Your Network
When you restart your network, follow this sequence:
1. Turn off and unplug the modem.
2. Turn off the router.
3. Plug in the modem and turn it on. Wait two minutes.
4. Turn on the router and wait two minutes.
Check Ethernet Cable Connections
If your device does not power on, make sure that the Ethernet cables are securely plugged in.The Internet LED on
the router is lit if the Ethernet cable connecting the router and the modem is plugged in securely and the modem
and router are turned on. If one or more powered-on computers are connected to the router by an Ethernet cable,
the corresponding numbered router LAN port LED lights.
Network Settings
Make sure that the network settings of the computer are correct. Wired and wirelessly connected computers must
use network (IP) addresses on the same network as the router. The simplest way to do this is to configure each
computer to obtain an IP address automatically using DHCP.
Some cable modem service providers require you to use the MAC address of the computer initially registered on
the account.You can view the MAC address on the Attached Devices page.
WiFi Settings
Make sure that the WiFi settings in the computer and router match exactly.The WiFi network name (SSID) and WiFi
security settings of the router and the computer or WiFi-capable device must match exactly.
If you set up an access list on the Wireless Settings page, you must add each computer or WiFi device’s MAC
address to the router’s access list.
Troubleshoot With the LEDs
By default, the router is set with standard LED settings. If you turned off the LEDs except the Power LED, you must
return the LEDs to their standard settings for troubleshooting. Pressing the LED button on the front panel of the
router turns the LEDs on and off.
Standard LED Behavior When the Router Is Powered On
After you turn on power to the router, verify that the following sequence of events occurs:
Troubleshooting
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Nighthawk X8 AC5000 Tri-Band WiFi Router
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