Troubleshooting

51

NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway

easily troubleshoot a TCP/IP network by using the ping utility in your computer or

workstation.

T

est the LAN Path to

Y

our Gateway

You can use ping to verify that the LAN path to your gateway is set up correctly.



To ping the gateway from a computer running Windows 95 or later:

1.

From the Windows toolbar, click the

Start

button and select

Run

.

2.

In the field provided, type

ping

followed by the IP address of the gateway, as in this

example:

ping 192.168.0.1

3.

Click

OK

.

You should see a message like this one:

Pinging <IP address> with 32 bytes of data

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 working correctly, you could have one of the following problems:

•

Wrong physical connections.

-

Make sure that the LAN port LED is lit. If the LED is off, see

Basic Functions

on

page

49.

-

Check that the corresponding LEDs are on for your network interface card and for

the hub ports (if any) that are connected to your workstation and gateway.

•

Wrong network configuration.

-

Verify that the Ethernet card driver software and TCP/IP software are both

installed and configured on your computer or workstation.

-

Verify that the IP address for your gateway and your workstation are correct and

that the addresses are on the same subnet.

T

est the Path from

Y

our Computer to a Remote Device

After verifying that the LAN path works correctly, test the path from your computer to a

remote device. From the Windows Run dialog box, type:

ping -n 10

<IP address>

where <

IP address

> is the IP address of a remote device such as your ISP’s DNS server.

Troubleshooting

52

NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway

If the path is functioning correctly, replies as in the previous section are displayed. If you do

not receive replies:

•

Check that your computer has the IP address of your gateway listed as the default

gateway. If the IP configuration of your computer is assigned by DHCP, this information is

not visible in your computer’s Network Control Panel. Verify that the IP address of the

gateway is listed as the default gateway.

•

Check to see that the network address of your computer (the portion of the IP address

specified by the netmask) is different from the network address of the remote device.

•

Check that your Internet LED is on.

53

A

A.

Supplemental Information

This appendix includes the following sections:

•

Factory Default Settings

•

Technical Specifications

Supplemental Information

54

NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway

Factory Default Settings

You can return the gateway to its factory settings. On the rear panel of the gateway, press

and hold the

Reset

button

for over 7 seconds. The gateway resets and returns to the

factory configuration settings shown in the following table.

Table 2.

Factory default settings

Feature

Parameter

Default

Gateway login

User login URL

User name and password

(case-sensitive)

admin/password

Local network

(LAN)

LAN IP

192.168.0.1

Subnet mask

255.255.255.0

DHCP server

Enabled

DHCP starting IP address

192.168.0.2

DHCP Ending IP address

192.168.0.254

Firewall

Inbound communication from the

Internet

Disabled (except traffic on port 80, the HTTP port)

Outbound communication to the

Internet

Enabled (all)

Source MAC filtering

Disabled

Internet

connection

WAN MAC address

Use default hardware address.

WAN MTU size

1500

Supplemental Information

55

NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway

T

echnical Specifications

The following table describes the technical specifications for the gateway.

Table 3.

Technical specifications

Wireless

Wireless communication

Enabled

SSID name

Appears on the label of the gateway.

Security

WPA/WPA2

The default WPA/WPA2 password appears on the

label of the gateway.

Broadcast SSID

Enabled

Transmission speed

Auto

1

Country/region

United States (varies by region)

RF channel

Auto

Operating mode

n, g, and b

Data rate

Best

Output power

Full

Access point

Enabled

Authentication type

Open System

Wireless Card Access List

All wireless stations allowed

1. Maximum wireless signal rate derived from IEEE Standard 802.11 specifications. Actual throughput

varies. Network conditions and environmental factors, including volume of network traffic, building materials

and construction, and network overhead, might lower actual data throughput rate.

Component

Specification

Network protocol and

standards compatibility

Data and routing protocols: TCP/IP, DHCP server, and client, DNS relay, NAT

(many-to-one), TFTP client, VPN pass-through (IPSec, PPTP)

Power adapter

•

North America (input): 120V, 60 Hz, input

•

All regions (output): 12 V-DC @ 2.5A output 30W maximum

Physical specifications

•

Dimensions: 10.2 by 6.49 by 3.65 in. (259.17 by 164.77 by 92.72 mm)

•

Weight: 1.30 lb (590 g)

Environmental

•

Operating temperature: 32



to 140



-F (0



to 40



-C)

•

Operating humidity: 90% maximum relative humidity, non-condensing

•

Electromagnetic emissions: Meets requirements of: FCC Part 15 Class B.

Feature

Parameter

Default