Troubleshooting

17

If the modem router does not save changes you have made in the Web Management 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.

Troubleshooting the Internet Connection

If your computer is connected to your modem router via a router, disconnect the router and directly

connect the computer to the modem router. If you now have Internet access, use the documentation

that came with the router to perform re-installation and troubleshooting.

If your modem router is unable to access the internet, but your Internet LED is green or blinking

green, you should determine whether the modem router is able to obtain an IP address from the

ISP. Unless you have been assigned a static IP address, your modem router must request an IP

address from the ISP. You can determine whether the request was successful using the browser

interface.

To check the WAN IP address from the browser interface:

1.

Launch your browser and select an external site such as

www.netgear.com

.

2.

Access the management interface of the modem router using your browser. For details, see

“Log in to the modem router.” on page 11

.

3.

Under the Maintenance heading, select

Modem Status

. Check that an IP address is shown for

the ADSL Port. If 0.0.0.0 is shown, your modem router has not obtained an IP address from

your ISP.

If your modem router is unable to obtain an IP address from the ISP, the problem may be one of the

following:

•

Your ISP may require a Multiplexing Method or Virtual Path Identifier/Virtual Channel

Identifier parameter.

Verify with your ISP the Multiplexing Method and parameter value, and update the router’s

ADSL settings accordingly.

•

If your ISP requires PPP over Ethernet (PPPoE) or PPP over ATM (PPPOA), check that your

login credentials are correct. See

“Troubleshooting PPPoE or PPPoA” on page 18

.

18

Troubleshooting

•

Log in to the modem router interface, note the modem router and ADSL status, run the

diagnostics test, and contact your ISP’s technical support representative. See the

User Manual

for detailed information.

Troubleshooting PPPoE or PPPoA

The PPPoA or PPPoA connection can be debugged as follows:

1.

Access the Main Menu of the router at

.

2.

Under the Maintenance heading, select the

Diagnostics

.

3.

Click

Run Diagnostic Tests

.

4.

If all of the steps indicate “OK” then your PPPoE or PPPoA connection is up and working.

If you cannot connect after several minutes, you may be using an incorrect Service Name, User

Name or Password. There also may be a provisioning problem with your ISP.

Troubleshooting Internet Browsing

If your modem router can obtain an IP address but your computer is unable to load any Web pages

from the Internet:

•

Your computer 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 modem router’s configuration,

reboot your computer and verify the DNS address as described in the online document that

you can access from

“Preparing Your Network” on page 23

. Alternatively, you can configure

your computer manually with DNS addresses, as explained in your operating system

documentation

.

•

Your computer may not have the modem router configured as its TCP/IP modem router.

•

If your computer obtains its information from the modem router by DHCP, reboot the

computer and verify the modem router address as described in the online document that you

can access from

“Preparing Your Network” on page 23

.

Unless you connect manually, the modem router will not authenticate using PPPoE or

PPPoA until data is transmitted to the network.

Troubleshooting

19

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 Web Management Interface.

•

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.

Using the Reset Button

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 Power LED turns red (about 10 seconds).

2.

Release the Default Reset button and wait for the router to reboot.

20

Troubleshooting

Technical Specifications

21

Technical Specifications

This appendix provides technical specifications for the modem router.

General Specifications

Network Protocol and Standards Compatibility

Data and Routing Protocols:

TCP/IP (Optional)

RIP-1 (Optional)

RIP-2 (Optional)

DHCP (Optional)

PPPoE or PPPoA

RFC 1483/RFC 2684 Bridged or Routed (Optional) Ethernet

RFC 1577 Classical IP over ATM (Optional)

Power Adapter

North America:

120V, 60 Hz, input

UK, Australia:

240V, 50 Hz, input

Europe:

230V, 50 Hz, input

Japan:

100V, 50/60 Hz, input

All regions (output):

12 V AC @ 1.0A output, 30W maximum

Physical

Dimensions:

5.8" x 3.8" x 1.4"

147 mm x 95.5 mm x 34.4 mm

Weight:

0.42 lbs

0.19 kg

Environmental

Operating temperature:

0

°

to 40

°

C

(32º to 104º F)

Operating humidity:

90% maximum relative humidity, noncondensing