Netgear Dgnd4000 N750 Wireless Dual Band Gigabit Adsl2 Plus Modem Router User Manual

Advanced Settings 
131  N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000
-Direction/Type. This setting is used when determining if the IKE policy matches 
the current traffic. Select the desired option.
-Responder only. Incoming connections are allowed, but outgoing connections 
are blocked.
-Initiator and Responder. Both incoming and outgoing connections are allowed.
-Exchange Mode. Currently, only Main Mode is supported. Ensure that the remote 
VPN endpoint is set to use Main Mode....

Advanced Settings 132
N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000 
This setting applies to both IKE and IPSec SAs. When configuring the rem\
ote 
endpoint to match this setting, you might need to specify the key group \
used. For 
this device, the key group is the same as the DH Group setting in the IK\
E section.
4.  Click  Apply  when done.
Add or Edit a Manual VPN Policy
A Manual VPN policy requires all settings (including the keys) for the\
 VPN tunnel to be 
manually input at each end...

Advanced Settings 
133  N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000
•Local LAN. These settings identify which computers on your LAN are covered by this 
policy. For each selection, data must be provided as follows:
-Single address. Enter an IP address in the Single/Start IP address field. 
Typically, this setting is used when you wish to make a single server on your LAN 
available to remote users.
-Range address. Enter the starting IP address in the Single/Start IP address field, 
and the...

134
10
10.   Troubleshooting
Diagnose and solve problems
This chapter provides information to help you diagnose and solve problems you might have with 
your wireless modem router. If you do not find the solution here, check the NETGEAR support 
site at 
http://support.netgear.com/general/contact/default.aspx for product and contact 
information.
This chapter contains the following sections:
•Quick Tips 
•Troubleshoot with the LEDs 
•Cannot Log In to the Router 
•Cannot Access the Internet 
•Changes Not...

Troubleshooting 
135  N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000
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 2 minutes.
4. Turn on the wireless modem router and wait 2 minutes.
5. Turn on the computers.
Check Ethernet Cable Connections
Make...

Troubleshooting 
136 N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000 
Troubleshoot with the LEDs
After you turn on power to the wireless modem router, the following sequence of events 
should occur:
1. When power is first applied, verify that the Power LED is lit.
2. Verify that the Power LED turns red within a few seconds, indicating that the self-test is 
running.
3. After approximately 30 seconds, verify:
•The Power LED is solid green.
•The Internet LED is lit.
•The Ethernet LED is lit for...

Troubleshooting 
137  N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000
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 lit, there is a fault within the wireless modem router.
If all LEDs are still lit 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 settings....

Troubleshooting 
138 N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000 
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 
139  N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000
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 
140 N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000 
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 connection is 
working.
If any of the steps indicate Failed, you can attempt to reconnect by clicking Connect. The 
wireless modem router...