Netgear Router WGT624 User Manual

							Reference Manual for the 108 Mbps Wireless Firewall Router WGT624
Advanced Configuration 6-13
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To allow access from a range of IP addresses on the Internet, select IP address range. 
Enter a beginning and ending IP address to define the allowed range. 
c.To allow access from a single IP address on the Internet, select Only this PC. 
Enter the IP address that will be allowed access. 
3.Specify the Port Number that will be used for accessing the management interface.
web browser access normally uses the standard HTTP service port 80. For greater security, 
you can change the remote management web interface to a custom port by entering that 
number in the box provided. Choose a number between 1024 and 65535, but do not use the 
number of any common service port. The default is 8080, which is a common alternate for 
HTTP.
4.Click Apply to have your changes take effect.
Note: When accessing your router from the Internet, you will type your routers WAN IP address 
into your browsers Address (in IE) or Location (in Netscape) box, followed by a colon (:) and the 
custom port number. For example, if your external address is 134.177.0.123 and you use port 
number 8080, you must enter http://134.177.0.123:8080 in your browser. 
Using Universal Plug and Play (UPnP)
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, 
access the network and connect to other devices as needed. UPnP devices can 
automatically discover the services from other registered UPnP devices on the network. 
 
Figure 6-6. UPnP Menu 
						

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Turn UPnP On: UPnP can be enabled or disabled for automatic device configuration. The default 
setting for UPnP is enabled. If disabled, the router will not allow any device to automatically 
control the resources, such as port forwarding (mapping), of the router. 
Advertisement Period: The Advertisement Period is how often the router will broadcast its UPnP 
information. This value can range from 1 to 1440 minutes. The default period is 30 minutes. 
Shorter durations will ensure that control points have current device status at the expense of 
additional network traffic. Longer durations may compromise the freshness of the device status but 
can significantly reduce network traffic.
Advertisement Time To Live: The time to live for the advertisement is measured in hops (steps) 
for each UPnP packet sent. The time to live hop count is the number of steps a broadcast packet is 
allowed to propagate for each UPnP advertisement before it disappears. The number of hops can 
range from 1 to 255. The default value for the advertisement time to live is 4 hops, which should 
be fine for most home networks. If you notice that some devices are not being updated or reached 
correctly, then it may be necessary to increase this value a little.
UPnP Portmap Table: The UPnP Portmap Table displays the IP address of each UPnP device that 
is currently accessing the router and which ports (Internal and External) that device has opened. 
The UPnP Portmap Table also displays what type of port is opened and if that port is still active for 
each IP address.  
						

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Chapter 7
Troubleshooting
This chapter gives information about troubleshooting your 108 Mbps Wireless Firewall Router 
WGT624. After each problem description, instructions are provided to help you diagnose and 
solve the problem.
Basic Functioning
After you turn on power to the 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:
a.The Local port LEDs are lit for any local ports that are connected.
If a port’s LED is lit, a link has been established to the connected device. 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 will be amber.
b.The Wireless port LED is lit.
c.The Internet port LED is lit.
If any of these conditions does not occur, refer to the appropriate following section.
Power LED Not On
If the Power and other LEDs are off when your router is turned on:
• Make sure that the power cord is properly connected to your router and that the power supply 
adapter is properly connected to a functioning power outlet. 
Note: Product updates are available on the NETGEAR, Inc. web site at http://
www.netgear.com/support/main.asp. Documentation updates are available on the 
NETGEAR, Inc. web site at http://www.netgear.com/docs. 
						

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• Check that you are using the 12 V DC 800mA power adapter supplied by NETGEAR for this 
product.
If the error persists, you have a hardware problem and should contact technical support.
LEDs Never Turn Off 
When the router is turned on, the LEDs turns 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 one minute after power up:
• Cycle the power to see if the router recovers.
• Clear the router’s configuration to factory defaults. This will set the router’s IP address to 
192.168.0.1. This procedure is explained in “Restoring the Default Configuration and 
Password” on page 8-7.
If the error persists, you might have a hardware problem and should contact technical support.
Local or Internet Port LEDs Not On
If either the LAN LEDs or WAN LED do not light when the Ethernet connection is made, check 
the following:
• Make sure that the Ethernet cable connections are secure at the router and at the hub or 
workstation.
• Make sure that power is turned on to the connected hub or workstation.
• Be sure you are using the correct cable:
When connecting the router’s WAN 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. 
						

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Troubleshooting the Web Configuration Interface
If you are unable to access the router’s web Configuration interface from a PC on your local 
network, check the following:
• Check the Ethernet connection between the PC and the router as described in the previous 
section.
• Make sure your PC’s IP address is on the same subnet as the router. If you are using the 
recommended addressing scheme, your PC’s address should be in the range of 192.168.0.2 to 
192.168.0.254. Refer to “Verifying TCP/IP Properties” on page C-6 or “Verifying TCP/IP 
Properties for Macintosh Computers” on page C-17 to find your PC’s IP address. Follow the 
instructions in Appendix C to configure your PC.
Note: If your PC’s IP address is shown as 169.254.x.x: Recent versions of Windows and 
MacOS will generate and assign an IP address if the computer cannot reach a DHCP server. 
These auto-generated addresses are in the range of 169.254.x.x. If your IP address is in this 
range, check the connection from the PC to the router and reboot your PC.
• If your router’s IP address has been changed and you don’t know the current IP address, clear 
the router’s configuration to factory defaults. This will set the router’s IP address to 
192.168.0.1. This procedure is explained in “Restoring the Default Configuration and 
Password” on page 8-7.
• Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet 
Explorer, click Refresh to be sure the Java applet is loaded.
• Try quitting the browser and launching it again.
• Make sure you are using the correct login information. The factory default login name is 
admin and the password is password. Make sure that CAPS LOCK is off when entering this 
information.
If the router does not save changes you have made in the web Configuration Interface, check the 
following:
• When entering configuration settings, be sure to click the APPLY button before moving to 
another menu or tab, or your changes are lost. 
• Click the Refresh or Reload button in the web browser. The changes may have occurred, but 
the web browser may be caching the old configuration. 
						

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Troubleshooting the ISP Connection
If your router is unable to access the Internet, you should first determine whether the router is able 
to obtain a WAN IP address from the ISP. Unless you have been assigned a static IP address, your 
router must request an IP address from the ISP. You can determine whether the request was 
successful using the web Configuration Manager.
To check the WAN IP address: 
1.Launch your browser and select an external site such as www.netgear.com
2.Access the Main Menu of the router’s configuration at http://192.168.0.1 
3.Under the Maintenance heading, select Router Status
4.Check that an IP address is shown for the WAN Port 
If 0.0.0.0 is shown, your router has not obtained an IP address from your ISP.
If your router is unable to obtain an IP address from the ISP, you may need to force your cable or 
DSL modem to recognize your new router by performing the following procedure:
1.Turn off power to the cable or DSL modem. 
2.Turn off power to your router. 
3.Wait five minutes and reapply power to the cable or DSL modem. 
4.When the modem’s LEDs indicate that it has reacquired sync with the ISP, reapply power to 
your router.
If your router is still unable to obtain an IP address from the ISP, the problem may be one of the 
following:
• Your ISP may require a login program. 
Ask your ISP whether they require PPP over Ethernet (PPPoE) or some other type of login.
• If your ISP requires a login, you may have incorrectly set the login name and password.
• Your ISP may check for your PCs host name. 
Assign the PC Host Name of your ISP account as the Account Name in the Basic Settings 
menu.
• Your ISP only allows one Ethernet MAC address to connect to Internet, and may check for 
your PC’s MAC address. In this case:
Inform your ISP that you have bought a new network device, and ask them to use the router’s 
MAC address. 
						

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OR
Configure your router to spoof your PC’s MAC address. This can be done in the Basic Settings 
menu. Refer to “How to Manually Configure Your Internet Connection” on page 3-13.
If your router can obtain an IP address, but your PC is unable to load any web pages from the 
Internet:
• Your PC may not recognize any DNS server addresses. 
A DNS server is a host on the Internet that translates Internet names (such as www addresses) 
to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS 
servers for your use. If you entered a DNS address during the router’s configuration, reboot 
your PC and verify the DNS address as described in “Verifying TCP/IP Properties” on 
page C-6. Alternatively, you may configure your PC manually with DNS addresses, as 
explained in your operating system documentation.
• Your PC may not have the router configured as its TCP/IP gateway.
If your PC obtains its information from the router by DHCP, reboot the PC and verify the 
gateway address as described in “Verifying TCP/IP Properties” on page C-6.
Troubleshooting a TCP/IP Network Using a Ping Utility
Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request packet 
to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP 
network is made very easy by using the ping utility in your PC or workstation.
Testing the LAN Path to Your Router
You can ping the router from your PC to verify that the LAN path to your router is set up correctly.
To ping the router from a PC running Windows 95 or later:
1.From the Windows toolbar, click on the Start button and select Run.
2.In the field provided, type Ping followed by the IP address of the router, as in this example:
ping 192.168.0.1
3.Click on OK.
You should see a message like this one:
Pinging  with 32 bytes of data 
						

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If the path is working, you see this message:
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx
If the path is not working, you see this message:
Request timed out
If the path is not functioning correctly, you could have one of the following problems:
• Wrong physical connections
— Make sure the LAN port LED is on. If the LED is off, follow the instructions in 
“Local or Internet Port LEDs Not On” on page 7-2.
— Check that the corresponding Link LEDs are on for your network interface card and 
for the hub ports (if any) that are connected to your workstation and router.
• Wrong network configuration
— Verify that the Ethernet card driver software and TCP/IP software are both installed 
and configured on your PC or workstation.
— Verify that the IP address for your router and your workstation are correct and that the 
addresses are on the same subnet.
Testing the Path from Your PC to a Remote Device
After verifying that the LAN path works correctly, test the path from your PC to a remote device. 
From the Windows run menu, type:
PING -n 10 
where  is the IP address of a remote device such as your ISP’s DNS server.
If the path is functioning correctly, replies as in the previous section are displayed. If you do not 
receive replies:
— Check that your PC has the IP address of your router listed as the default gateway. If the IP 
configuration of your PC is assigned by DHCP, this information will not be visible in your 
PC’s Network Control Panel. Verify that the IP address of the router is listed as the default 
gateway as described in “Verifying TCP/IP Properties” on page C-6.
— Check to see that the network address of your PC (the portion of the IP address specified 
by the netmask) is different from the network address of the remote device.
— Check that your cable or DSL modem is connected and functioning. 
						

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— If your ISP assigned a host name to your PC, enter that host name as the Account Name in 
the Basic Settings menu.
— Your ISP could be rejecting the Ethernet MAC addresses of all but one of your PCs. Many 
broadband ISPs restrict access by only allowing traffic from the MAC address of your 
broadband modem, but some ISPs additionally restrict access to the MAC address of a 
single PC connected to that modem. If this is the case, you must configure your router to 
“clone” or “spoof” the MAC address from the authorized PC. Refer to “How to Manually 
Configure Your Internet Connection” on page 3-13.
Restoring the Default Configuration and Password
This section explains how to restore the factory default configuration settings, changing the 
router’s administration password to password and the IP address to 192.168.0.1. You can erase the 
current configuration and restore factory defaults in two ways:
• Use the Erase function of the router (see “Erasing the Configuration” on page 6-8).
• Use the Default Reset button on the rear panel of the router. Use this method for cases when 
the administration password or IP address is not known.
To restore the factory default configuration settings without knowing the administration password 
or IP address, you must use the Default Reset button on the rear panel of the router.
1.Press and hold the Default Reset button until the Test LED turns on (about 10 seconds).
2.Release the Default Reset button and wait for the router to reboot.
Problems with Date and Time
The E-Mail menu in the Content Filtering section displays the current date and time of day. The 
WGT624 wireless router uses the Network Time Protocol (NTP) to obtain the current time from 
one of several Network Time Servers on the Internet. Each entry in the log is stamped with the date 
and time of day. Problems with the date and time function can include:
• Date shown is January 1, 2000. Cause: The router has not yet successfully reached a Network 
Time Server. Check that your Internet access settings are configured correctly. If you have just 
completed configuring the router, wait at least five minutes and check the date and time again.
• Time is off by one hour. Cause: The router does not automatically sense Daylight Savings 
Time. In the E-Mail menu, check or uncheck the box marked “Adjust for Daylight Savings 
Time”. 
						

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