Netgear Dgnd3700v2 N600 Wireless Dual Band Gigabit Adsl2 Plus Modem Router User Manual

Troubleshooting 
131  N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2
Quick Tips
This section describes tips for troubleshooting some common problems.
Sequence to Restart Your Network
Be sure to restart your network in this sequence:
1. Turn off and unplug the modem. 
2. Turn off the wireless modem router and computers.
3. Plug in the modem and turn it on. Wait two minutes.
4. Turn on the wireless modem router and wait two minutes.
5. Turn on the computers.
Check Ethernet Cable...

Troubleshooting 132
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2 
Troubleshoot with the LEDs
After you turn on power to the wireless modem router, the following sequ\
ence of events 
should occur:
1.  When power is first applied, verify that the Power LED 
 is on.
2.  V
erify that the Power LED turns red within a few seconds, indicating that\
 the self-test is 
running.
3.  After approximately 30 seconds, verify that:
• The Power LED is solid green.
• The Internet LED is on.
• A...

Troubleshooting 
133  N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2
LEDs Never Turn Off
When the wireless modem router is turned on, the LEDs turn on for about 10 seconds and 
then turn off. If all the LEDs stay on, there is a fault within the wireless modem router.
If all LEDs are still on 1 minute after power-up:
•Cycle the power to see if the wireless modem router recovers.
•Press and hold the Restore Factory Settings button to return the wireless modem router 
to its factory...

Troubleshooting 
134 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2 
Cannot Log In to the Router
If you are unable to log in to the wireless modem router from a computer on your local 
network, check the following:
•If you are using an Ethernet-connected computer, check the Ethernet connection 
between the computer and the wireless modem router as described in the previous 
section.
•Make sure that your computer’s IP address is on the same subnet as the wireless modem 
router. If you are...

Troubleshooting 
135  N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2
To check the WAN IP address: 
1. Start your browser, and select an external site such as http://www.netgear.com.
2. Access the wireless modem router interface at http://www.routerlogin.net.
3. Select Administration > Router Status.
4. Check that an IP address is shown for the Internet port. If 0.0.0.0 is shown, your wireless 
modem router has not obtained an IP address from your ISP.
If your wireless modem router cannot...

Troubleshooting 
136 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2 
need to go to Internet Explorer and select Tools > Internet Options, click the 
Connections tab, and select Never dial a connection.
Troubleshoot PPPoE
If you are using PPPoE, try troubleshooting your Internet connection.
To troubleshoot a PPPoE connection:
1. Log in to the wireless modem router.
2. Select Administration > Router Status.
3. Click Connection Status. If all of the steps indicate OK, then your PPPoE...

Troubleshooting 
137  N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2
Explorer and select Tools > Internet Options, click the Connections tab, and select 
Never dial a connection.
If the wireless modem router does not save changes you have made in the browser 
interface, check the following:
•When entering configuration settings, be sure to click Apply before moving to another 
screen or tab, or your changes could be lost.
•Click Refresh or Reload in the web browser. The changes might have...

Troubleshooting 
138 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2 
If you disabled the wireless modem router’s SSID broadcast, then your wireless network 
is hidden and does not show up in your wireless client’s scanning list. (By default, SSID 
broadcast is enabled.)
•Does your wireless device support the security that you are using for your wireless 
network (WPA or WPA2)?
•If you want to view the wireless settings for the wireless modem router, use an Ethernet 
cable to connect a...

Troubleshooting 
139  N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2
Test the LAN Path to Your Router
You can ping the wireless modem router from your computer to verify that the LAN path to 
your wireless modem router is set up correctly.
To ping the wireless modem router from a computer running Windows:
1. From the Windows toolbar, click Start, and then select Run.
2. In the field provided, type ping followed by the IP address of the wireless modem router, as 
in this example:
ping...

Troubleshooting 
140 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2 
where  is the IP address of a remote device such as your ISP’s DNS server.
If the path is functioning correctly, replies like those shown in the previous section are 
displayed.
If you do not receive replies:
•Check that your computer has the IP address of your wireless modem router listed as the 
default gateway. If the IP configuration of your computer is assigned by DHCP, this 
information is not be visible in your...