Netgear Centria Wndr4700 Wndr4720 Media Storage Router User Manual

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router blocks this packet. This function has 
two modes. The default is Secured mode, which 
checks both TCP and UDP packets. For Open m ode, the checking is applied only to the UDP 
connection. 
Auto Config
In the IPv6 screen, when you select  Auto Config from the drop-down list, the following 
screen displays.
The following fields are included in this screen:
DHCP User Class . Most pe
 ople do not need to fill in this field, but if your ISP has given you a 
specific host name, enter it here.
DHCP Domain Name . This is not
  needed for most connections. You can type the domain 
name of your ISP. For example, if your ISPs mail server is mail.xxx.y yy.zzz, you would type 
xxx.yyy.zzz  as the domain name. 
If your ISP provided you with a domain name, ty pe it
  in this field. For example, Earthlink 
Cable might require a host name of  home and Comcast sometimes supplies a domain name.
This is the domain name for the IPv6 connection.  Do not 
 enter the domain name for the IPv4 
connection here.
The other settings are the same as Auto Detect mode. See  IPv6 LAN Setup  and IPv6 
Filtering o
n page  120. 
						

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6to4 Tunnel
In the IPv6 screen, when you select 
6to4 Tunnel from the drop-down list, the following 
screen displays.
The following fields are included in this screen:
Remote 6to4 Relay Router . The r
 emote relay router to which your router creates the 6to4 
tunnel. If your ISP provides the address of its own relay router, you can put it here. You can 
also leave it as Auto and the router uses any  remote relay router that is available. The 6to4 
tunnel connection needs the IPv4 Internet connection to be working first.
The other settings are the same as Auto Detect mode. See  IPv6 LAN Setup  and IPv6 
Filtering  on p
 age 120
Pass Through
In this mode, the router works as a layer 2 Ethernet switch with 2 ports (LAN and WAN 
Ethernet ports) for IPv6 packets. The router does not process any IPv6header packets. 
						

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Fixed
In the IPv6 screen, when you select 
Fixed from the drop-down list, the following screen 
displays.
The following fields are included in this screen:
IPv6 Fixed WAN Setup
IPv6 Address/Prefix Length . The IPv6 address and prefix length of the routers WAN 
interface.
Default IPv6 Gateway . The
  IPv6 address of the default IPv6 gateway, which is supposed to 
be on the routers WAN interface.
Primary/Secondary DNS Server . 
 The DNS servers that resolve IPv6 domain name records 
for you. If these fields are not specified, the router uses the DNS server configured for the 
IPv4 Internet connection on the Internet Settings screen. (See  Internet Setup o
n page 27 .)
IP Address Assignment . Y
 ou can select how you want to assign IPv6 addresses to the 
devices on your home network (the LAN). You can  use either DHCP Server or Auto Config to 
assign IPv6 address. Using DHCP Server might pass more information to LAN devices, but 
some IPv6 systems might not support the DHCv6 client function. Auto Config is used by 
default.
IPb6 Fixed LAN Setup
IPv6 Address/Prefix Length . The IPv6 address and prefix length of the routers LAN 
interface. 
						

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DHCP
In the IPv6 screen, when you select 
DHCP from the drop-down list, the following screen 
displays.
The following fields are included in this screen:
User Class. 
 Most people do not need to fill in this field, but if your ISP has given you a 
specific host name, enter it here.
Domain Name . This is not
  needed for Internet connections. You can type the domain name 
of your ISP. For example, if your ISPs ma il server is mail.xxx.yyy.zzz, you would type 
xxx.yyy.zzz  as the domain name. If your ISP provided  a domain name, type it in this field. 
(For example, Earthlink Cable might require a host name of  home and Comcast sometimes 
supplies a domain name.)
This is the domain name for the IPv6 connection . Do
  not enter the domain name for the IPv4 
connection here.
The other settings are the same as Auto Detect mode. See  IPv6 LAN Setup  and IPv6 
Filtering  on p
 age 120. 
						

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PPPoE
In the IPv6 screen, when you select 
PPPoE from the drop-down list, the following screen 
displays.
The following fields are included in this screen:
Login . 
This is usually the name that you use in your email address. For example, if your main 
mail account is [email protected], then you would put JerAB in this field.
Some ISPs (like Mindspring, Earthlink, and T-DSL) 
 require that you use your full email 
address when you log in. If your ISP requires yo ur full email address, type it in this field.
Password .
 Type the password that you use to log in to your ISP.
Service Name .
  If your ISP provided a service name, enter it here. Otherwise, you can leave 
this field blank.
Connection Mode . 
 This specifies when the router should establish the PPPoE connection. 
Currently the connection mode is  always on to provide a steady IPv6 connection. The router 
never disconnects the connection, and in case the connection is broken (such as if the 
modem is turned off), the rout er establishes the connection  right after the PPPoE connection 
is available.
The other settings are the same as Auto Detect mode. See  IPv6 LAN Setup  and IPv6 
Filtering o
n page  120.
Traffic Meter
Traffic metering allows you to monitor the volume of Internet traffic passing through your 
router’s Internet port. With the Traffic Meter utility, you can set limits for traffic volume, set a 
monthly limit, and get a live update of traffic usage. 
						

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To monitor Internet traffic:
1. 
Click  Advanced > Advanced Setup > Traffic Meter  to display the following screen.
Scroll to view 
more settings
2. To enable the traffic meter, select the  Enable Traffic Meter check box.
3.  If
 you would like to record and restrict the volume of Internet traffic, select the  Traffic 
volume control  by radio button. You can select one of the following options for controlling 
the traffic volume:
No Limit . 
No restriction is applied when the traffic limit is reached.
Download only . Th
 e restriction is applied to incoming traffic only.
Both Directions . The re
 striction is applied to both incoming and outgoing traffic.
4.  Y
ou can limit the amount of data traffic allowed per month by specifying how many Mbytes 
per month are allowed or by specifying how many hours of traffic are allowed.
5.  Set the T
 raffic Counter to begin at a specific time and date.
6.  Set 
up Traffic Control to issue a warning message before the monthly limit of Mbytes or 
hours is reached. You can select one of the following to occur when the limit is attained:
•      Th
e Internet LED flashes green or amber. 
•     Th
e Internet connection is disconnected and disabled.
7.  Set up Internet T
 raffic Statistics to monitor the data traffic.
8.  Click the T
 raffic Status button for an update on Internet traffic status on your router.
9.  Click  Apply  to save 
 your settings. 
						

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10
10.   Tro ub l e s h o ot i n g
This chapter provides information to help you diagnose and solve problems you might have with 
your router. If you do not find the solution here, check the NETGEAR support site at 
http://support.netgear.com for product and contact information.
This chapter contains the following sections:
•     Quick Tips 
•     Troubleshooting with the LEDs 
•     Cannot Log In to CENTRIA 
•     Cannot Access the Internet 
•     Changes Not Saved 
•     Wireless Connectivity 
•     Restore the Factory Settings and Password 
•     Troubleshoot Your Network Using the Ping Utility  
						

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128 CENTRIA WNDR4700/WNDR4720 
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 router and computers.
3. Plug in the modem and turn it on. Wait 2 minutes.
4. Turn on the router and wait 2 minutes.
5. Turn on the computers.
Check Ethernet Cable Connections
Make sure that the Ethernet cables are securely plugged in: 
•     The Internet LED on the router is on if the Ethernet cable connecting the router and the 
modem is plugged in securely and the modem and router are turned on. 
•     For each powered-on computer connected to the router by an Ethernet cable, the 
corresponding numbered router LAN port LED is on. 
Hard Disk Drive (HDD)
If you turn off the router when an HDD is installed, wait 2 seconds before turning it back on to 
give the HDD enough time to reset. 
If the HDD LED is red and it used to be green, the HDD connection could be loose. Turn off 
the router. Disconnect the HDD, and then connect it again. Turn on the router and check the 
HDD LED.
Wireless Settings
Make sure that the wireless settings in the computer and router match exactly. 
•     For a wirelessly connected computer, the wireless network name (SSID) and wireless 
security settings of the router and wireless computer need to match exactly. 
•     If you set up an access list in the Advanced Wireless Settings screen, you have to add 
each wireless computer’s MAC address to the router’s access list. 
						

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Network Settings
Make sure that the network settings of the computer are correct: 
•     
Wire
d and wirelessly connected computers need to have 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 acco unt. You can view the MAC address in the 
Attached Devices screen.
Troubleshooting with the LEDs
After you turn on power to the router, the following sequence of events should occur:
1.  W
hen power is first applied, verify that the Power LED  is on.
2.  V
erify that the Power LED turns amber within a few seconds, indicating that the self-test is 
running.
3.  Af
ter 2 minutes, verify the following:
•     Th
e Power LED lights solid green.
•     Th
e Internet LED lights.
•     Th
e Wireless LED lights blue.
The LEDs on the front panel of the router can be used for troubleshooting.
Power LED Is Off or Blinking
•      Make su
 re that the power cord is securely connected to your router and that the power 
adapter is securely connected to a functioning power outlet. 
•      Check tha
 t you are using the 12V DC, 5A power adapter that NETGEAR supplied for this 
product.
•      If
 the Power LED blinks slowly and continuously, the router firmware is corrupted. This can 
happen if a firmware upgrade is interrupted, or if the router detects a problem with the 
firmware. If the error persists, you have a hardware problem. For recovery instructions, or 
help with a hardware problem, contact technical support at  www.netgear.com/support.
Power LED Stays Amber
When the router is turned on, the Power LED turns amber for about 20 seconds and then 
turns green. If the LED does not turn green, the router has a problem.
If the Power LED is still amber 1 minute after you turn on power to the router:
1. T
urn off the power and then turn it back on to see if the router recovers.
2. Pre
ss and hold the  Reset button to return the router to its factory settings. as explained 
in  Restore the Factory Settings and Password  on p
 age 135. 
						

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130 CENTRIA WNDR4700/WNDR4720 
If the error persists, you might have a hardware problem and should contact technical support 
at 
www.netgear.com/support.
HDD LED Is Red or Red and Green
•     If the HDD LED is solid green plus red, the internal hard disk drive (HDD) is 85% full. 
•     If the HDD LED is blinking green and red, the HDD is 95% full. 
•     If the HDD LED is solid red, the HDD is not formatted, the HDD connection is loose, or 
there is a failure alert.
LEDs Never Turn Off
When the 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 router.
If all LEDs are still on 1 minute after power-up:
•     Cycle the power to see if the router recovers.
•     Press and hold the Reset button to return the router to its factory settings as explained in 
Restore the Factory Settings and Password on page 135.
If the error persists, you might have a hardware problem and should contact technical support 
at 
www.netgear.com/support.
Internet LED Is Off
If the Internet LED does not light, check the following:
•     Make sure that the Ethernet cable connections are secure at the router and at the modem 
or computer.
•     Make sure that power is turned on to the connected modem or computer.
•     Be sure that you are using the correct cable.
When connecting the router’s Internet port to a cable or DSL modem, use the cable that 
was supplied with the cable or DSL modem. This cable could be a standard 
straight-through Ethernet cable or an Ethernet crossover cable.
Wireless LED Is Off
If the Wireless LED stays off, check to see if the Wi-Fi On/Off button on the router has been 
pressed. This button turns the wireless radios in the router on and off. The Wireless LEDs are 
lit when the wireless radio is turned on.