N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2 User Manual
Recommendation | Instructions |
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Make sure that the Ethernet cables are | For each |
securely plugged in. | modem router by an Ethernet cable, the corresponding |
| numbered router LAN port LED is on. |
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Make sure that the wireless settings in the | • For a wirelessly connected computer, the wireless network |
computer and router match exactly. | name (SSID) and wireless security settings of the N300 |
| wireless modem router and wireless computer must match |
| exactly. |
| • If you set up an access list in the Advanced Wireless Settings |
| screen, you must add each wireless computer’s MAC address |
| to the N300 wireless modem router’s access list. |
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Make sure that the network settings of the | • Wired and wirelessly connected computers must have network |
computer are correct. | (IP) addresses on the same network as the router. The |
| simplest way to ensure this is to configure each computer to |
| obtain an IP address automatically using DHCP. Click the link |
| to the online document Preparing Your Network in |
| Appendix E, or see the documentation that came with your |
| computer. |
| • 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 in the Attached |
| Devices screen. |
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Check the Test LED to verify correct N300 | If the Test LED does not turn off within 2 minutes after you turn |
wireless modem router operation. | the N300 wireless modem router on, reset the router according |
| to the instructions in Using the Restore Factory Settings Button |
| on page 147. |
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Troubleshooting with the LEDs
After you turn on power to the N300 wireless modem router, the following sequence of events should occur:
1.When power is first applied, verify that the Power LED 
is on.
2.After approximately 10 seconds, verify that:
•The Power LED is green.
•The LAN port LEDs are lit for any local ports that are connected. If a LAN port is connected to a 100 Mbps device, verify that the port’s LED is green. If the port is 10 Mbps, the LED is amber.
•The ADSL link LED is lit, indicating that a link has been established to the connected device.
•The Wireless LEDs are lit.
