NETGEAR Nighthawk X4 R7500v2 Router Manual PDF (Setup & Configuration Guide)

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Quick Tips

This section describes tips for troubleshooting some common problems.

Sequence to Restart Your Network

When you need to restart your network, follow this sequence:

1.

Turn off and unplug the modem.

2.

Turn off the

router

.

3.

Plug in the modem and turn it on. Wait two minutes.

4.

Turn on the

router

and wait two minutes.

Check Ethernet Cable Connections

If your device does not power on, make sure that the Ethernet cables are securely plugged in.The Internet

LED on the

router

is lit if the Ethernet cable connecting the

router

and the modem is plugged in securely

and the modem and

router

are turned on. If one or more powered-on computers are connected to the

router

by an Ethernet cable, the corresponding numbered router LAN port LED lights.

Wireless Settings

Make sure that the wireless settings in the computer and

router

match exactly.The wireless network name

(SSID) and wireless security settings of the

router

and wireless computer must match exactly.

If you set up an access list in the Advanced Wireless Settings page, you must add each wireless computer’s

MAC address to the

router

’s access list.

Network Settings

Make sure that the network settings of the computer are correct.Wired and wirelessly connected computers

must use 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 account.You can view the MAC address on the Attached Devices page.

Troubleshoot with the LEDs

By default, the

router

is set with standard LED settings. If you turned off the LEDs except the Power LED,

you must return the LEDs to their standard settings for troubleshooting. For information about controlling

the LED settings, see

Turn the LEDs On or Off

on page 12.

Troubleshooting

171

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Standard LED Behavior When the Router Is Powered On

After you turn on power to the

router

, verify that the following sequence of events occurs:

1.

When power is first applied, verify that the Power LED

is lit.

2.

After about two minutes, verify the following:

•

The Power LED is solid white.

•

The Internet LED is lit.

•

The WiFi LED is lit unless you turned off the wireless radio.

You can use the LEDs on the front panel of the

router

for troubleshooting.

Power LED Is Off or Blinking

This could occur for a number of reasons. Check the following:

•

Make sure that the power adapter is securely connected to your

router

and securely connected to a

working power outlet.

•

Make sure that you are using the 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, it is likely that a hardware problem exists. 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 up to 2 minutes and then turns white. If the

LED does not turn white, this indicates a problem with the

router

.

If the Power LED is still amber three minutes after you turn on power to the

router

, do the following:

•

Cycle the power to see if the

router

recovers.

•

Press and hold the

Reset

button to return the

router

to its factory settings. For more information, see

Factory Settings

on page 181.

If the error persists, a hardware problem might be the cause. Contact technical support at

www.netgear.com/support

.

LEDs Never Turn Off

When the

router

is turned on, the LEDs light for about 10 seconds and then turn off. If all the LEDs stay

on, this indicates a fault within the

router

.

If all LEDs are still lit one minute after power-up, do the following:

Troubleshooting

172

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•

Cycle the power to see if the

router

recovers.

•

Press and hold the

Reset

button to return the

router

to its factory settings. For more information, see

Factory Settings

on page 181.

If the error persists, a hardware problem might be the cause. Contact technical support at

www.netgear.com/support

.

Internet or Ethernet Port LEDs Are Off

If either the Ethernet port LEDs or the Internet LED does 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 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 can be a standard straight-through Ethernet cable or an Ethernet

crossover cable.

WiFi LED Is Off

If the WiFi LED stays off, check to see if someone pressed the

WiFi On/Off

button on the

router

. This

button turns the wireless radios in the

router

on and off. The WiFi LED is lit when the wireless radio is

turned on.

You Cannot Log In to the Router

If you are unable to log in to the

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

router

.

•

Make sure that the IP address of your computer is on the same subnet as the

router

. If you are using

the recommended addressing scheme, your computer’s address is in the range of 192.168.1.2 to

192.168.1.254.

•

If your computer’s IP address is shown as 169.254.x.x, recent versions of Windows and Mac OS

generate and assign an IP address if the computer cannot reach a DHCP server.These autogenerated

Troubleshooting

173

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addresses are in the range of 169.254.x.x. If your IP address is in this range, check the connection

from the computer to the

router

, and reboot your computer.

•

If your

router

’s IP address was changed and you do not know the current IP address, clear the

router

’s

configuration to factory defaults.This sets the

router

’s IP address to 192.168.1.1. For more information,

see

Factory Settings

on page 181.

•

Make sure that Java, JavaScript, or ActiveX is enabled in your browser. If you are using Internet

Explorer, click the

Refresh

button to be sure that the Java applet is loaded.

•

Try quitting the browser and launching it again.

•

Make sure that you are using the correct login information. The user name is

admin

, and the default

password is

password

. Make sure that Caps Lock is off when you enter this information.

•

If you are attempting to set up your NETGEAR

router

as a replacement for an ADSL gateway in your

network, the

router

cannot perform many gateway services. For example, the router cannot convert

ADSL or cable data into Ethernet networking information. NETGEAR does not support such a

configuration.

You Cannot Access the Internet

If you can access your router but not the Internet, check to see if the

router

can obtain an IP address from

your Internet service provider (ISP). Unless your ISP provides a fixed IP address, your

router

requests

an IP address from the ISP.You can determine whether the request was successful using the ADVANCED

Home screen.

To check the WAN IP address:

1.

Launch a web browser from a computer or wireless device that is connected to the network.

2.

Select an external site such as

www.netgear.com

www.netgear.com.

3.

Type

http://www.routerlogin.net

.

A login window opens.

4.

Enter the

router

user name and password.

The user name is

admin

. The default password is

password

. The user name and password are

case-sensitive.

The BASIC Home screen displays.

5.

Click the

ADVANCED

tab.

The ADVANCED Home screen displays.

6.

Check that an IP address is shown for the Internet port. If 0.0.0.0 is shown, your

router

did not obtain

an IP address from your ISP.

If your

router

cannot obtain an IP address from the ISP, you might need to force your cable or DSL modem

to recognize your new

router

by restarting your network. For more information, see

Sequence to Restart Your

Network

on page 171.

If your

router

is still unable to obtain an IP address from the ISP, the problem might be one of the following:

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174

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•

Your Internet service provider (ISP) might 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, the login name and password might be set incorrectly.

•

Your ISP might check for your computer’s host name. Assign the computer host name of your ISP account

as the account name on the Internet Setup page.

•

If your ISP allows only one Ethernet MAC address to connect to Internet and checks for your computer’s

MAC address, do one of the following:

•

Inform your ISP that you bought a new network device and ask them to use the

router

’s MAC address.

•

Configure your

router

to clone your computer’s MAC address.

If your

router

obtained an IP address, but your computer is does not load any web pages from the Internet,

it might be for one or more of the following reasons:

•

Your computer might 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 provides the addresses of one or two DNS servers for your use. If you

entered a DNS address during the

router

’s configuration, reboot your computer, and verify the DNS

address.You can configure your computer manually with DNS addresses, as explained in your operating

system documentation.

•

The

router

might not be configured as the TCP/IP gateway on your computer.

If your computer obtains its information from the

router

by DHCP, reboot the computer and verify the

gateway address.

•

You might be running login software that is no longer needed.

If your ISP provided a program to log you in to the Internet (such as WinPoET), you no longer need to

run that software after installing your

router

.You might need to go to Internet Explorer and select

Tools

> Internet Options

, click the

Connections

tab, and select

Never dial a connection

. Other browsers

provide similar options.

Troubleshooting

175

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