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Troubleshooting
138
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Internet LED Is Red
If the Internet LED is red, the device could not connect to the Internet. Verify the following:
•
Check that your login credentials are correct. See
Log In to the N600 Modem Router
on
page
18 for more information.
•
Check that the information you entered on the Basic Settings screen is correct. See
Manual Setup (Basic Settings)
on page
22.
•
Check with your ISP to verify that the multiplexing method, VPI, and VCI settings on the
ADSL settings screen are correct.
•
Find out if the ISP is having a problem. If it is, wait until that problem is cleared up and try
again.
Cannot Obtain an Internet IP Address
If your modem router cannot access the Internet, and your Internet LED is green or blinking
green, check whether the modem router can obtain an Internet IP address from the ISP.
Unless you have been assigned a static IP address, your modem router has to request an IP
address from the ISP.
You can determine whether the request was successful as follows:
1.
Access the router menus at
http://192.168.0.1
and log in.
2.
Under Maintenance, select
Router Status
and check that an IP address shows for the WAN
port. If 0.0.0.0 shows, your modem router has not obtained an IP address from your ISP.
If your router cannot obtain an IP address from the ISP, the problem might be one of the
following:
•
If you have selected a login program, the service name, user name, or password might be
incorrect. See
Debug PPPoE or PPPoA
on page
139.
•
Your ISP might check for your computer’s host name. Assign the computer host name of
your ISP account to the modem router in the browser-based Setup Wizard. See
Setup
Wizard
on page
21 for more information.
•
Your ISP allows only one Ethernet MAC address to connect to the Internet, and might
check for your computer’s MAC address. In this case, do one of the following:
-
Inform your ISP that you have bought a new network device and ask them to use the
router’s MAC address.
-
Configure your router to spoof your computer’s MAC address through the Basic
Settings screen. See
Manual Setup (Basic Settings)
on page
22.