Netgear D7000 Nighthawk Ac1900 Wifi Vdsl Adsl Modem Router User Manual

							The port triggering settings display.
6. In the Port Triggering Time-out field, enter a value up to 9999 minutes.
The default setting is 20 minutes.
7. Click the 
Apply button.
Your settings are saved.
Disable Port Triggering
By default, port triggering is enabled. You can disable port triggering temporarily without removing any port triggering
rules. To disable port triggering: 1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2. Enter 
http://www.routerlogin.net.
A login window opens.
3. Enter the 
modem 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 page displays.
4. Select 
ADVANCED > Advanced Setup > Port Forwarding / Port Triggering.
The P
ort Forwarding / Port Triggering page displays.
5. Select the 
Port Triggering radio button.
The port triggering settings display.
6. Select the 
Disable Port Triggering check box.
If this chec
k box is selected, the modem router does not apply port triggering rules even if you specified them.
7. Clic

k the Apply button.
Y

our settings are saved.
Application Example: Port Triggering for Internet Relay Chat
Some application servers, such as FTP and IRC servers, send replies to multiple port numbers. Using port triggering,
you can tell the 
modem router to open more incoming ports when a particular outgoing port starts a session. Manage Port Forwarding and Port Triggering
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							An example is Internet Relay Chat (IRC). Your computer connects to an IRC server at destination port 6667. The
IRC server not only responds to your originating source port but also sends an “identify” message to your computer
on port 113. Using port triggering, you can tell the modem router, “When you initiate a session with destination port
6667, you must also allow incoming traffic on port 113 to reach the originating computer.”
The following sequence shows the effects of this port triggering rule:
1.
You open an IRC client program to start a chat session on your computer.
2. Your IRC client composes a request message to an IRC server using a destination port number of 6667, the
standard port number for an IRC server process. Your computer then sends this request message to your modem
router
.
3. Your 
modem router creates an entry in its internal session table describing this communication session between
your computer and the IRC server. Your modem router stores the original information, performs Network Address
Translation (NAT) on the source address and port, and sends this request message through the Internet to the
IRC server.
4. Noting your port triggering rule and observing the destination port number of 6667, your modem router creates
another session entry to send any incoming port 113 traffic to your computer.
5. The IRC server sends a return message to your modem router using the NAT-assigned source port (for example,
port 33333) as the destination port and also sends an “identify” message to your modem router with destination
port 113.
6. When your modem router receives the incoming message to destination port 33333, it checks its session table
to see if a session is active for port number 33333. Finding an active session, the 
modem router restores the
original address information replaced by NAT and sends this reply message to your computer.
7. When your modem 
router receives the incoming message to destination port 113, it checks its session table
and finds an active session for port 113 associated with your computer. The modem router replaces the message’s
destination IP address with your computer’s IP address and forwards the message to your computer.
8. When you finish your chat session, your modem router eventually senses a period of inactivity in the
comm

unications. The modem router then removes the session information from its session table, and incoming
tr

affic is no longer accepted on port numbers 33333 or 113. Manage Port Forwarding and Port Triggering
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							15
Diagnostics and Troubleshooting
This chapter provides information to help you diagnose and solve problems you might experience with your modem
router. If you do not find the solution here, check the NETGEAR support site at support.netgear.com for product and
contact inf
ormation.
This chapter contains the following sections:
• Perform Diagnostics
 on page 274
• Quick Tips for Troubleshooting on page 276
• T

roubleshoot With the LEDs
 on page 277
• You Cannot Log In to the Modem Router
 on page 279
• T
roubleshoot the Internet Connection
 on page 279
• Changes Are Not Sa
ved on page 284
• T

roubleshoot the WiFi Connectivity
 on page 284
• T
roubleshoot Your Network Using the Ping Utility on page 
285 273 
						

							Perform Diagnostics
The modem router lets you perform various diagnostic tasks. For normal operation, these tasks are not required.
P
erform a DNS Lookup
Use this test to find the IP address of a web, FTP, mail, or other server on the Internet. To look up an IP address: 1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2. Enter 
http://www.routerlogin.net.
A login window opens.
3. Enter the 
modem 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 page displays.
4. Select ADVANCED > Administration > Diagnostics.
The Diagnostics page displa

ys.
5. In the 
Internet Name field, enter the server’s host name such as www.netgear.com.
6. Click the 
Lookup button.
The results of the lookup display in the 
IP address and DNS Server fields.
Ping an IP Ad
dress
Use this test to send a ping packet request to an IP address to test the connection. If the request times out because
no reply is received, the destination might be unreachable. However, some network devices can be configured not
to respond to a ping. To ping an IP address: 1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2. Enter 
http://www.routerlogin.net.
A login window opens.
3. Enter the 
modem 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 page displays.
4. Select ADVANCED > Administration > Diagnostics. Diagnostics and Troubleshooting
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							The Diagnostics page displays.
5. In the IP address field, enter an IP address.
6. Click the 
Ping button.
The Diagnostics - Ping page displays the results of the ping test.
To return to the Diagnostics page, click the Back button.
Displa

y the Routing Table
Displaying the modem router’s internal routing table can assist you or NETGEAR technical support in diagnosing
routing prob

lems.
To display the routing table: 1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2. Enter 
http://www.routerlogin.net.
A login window opens.
3. Enter the 
modem 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 page displays.
4. Select ADVANCED > Administration > Diagnostics.
The Diagnostics page displa

ys.
5. Click the 
Display button.
The Diagnostics - Routing  Table page displays the routing table.
To return to the Diagnostics page, click the 
Back button.
Reboot the Modem Router From Its Web Pages
If the 
modem router seems to be unstable or is not operating normally, you or NETGEAR technical support can
reboot the 
modem router from its web pages, either locally or remotely.
To reboot the modem router from its web page: 1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2. Enter 
http://www.routerlogin.net.
A login window opens. Diagnostics and Troubleshooting
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							3.
Enter the modem 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 page displays.
4. Select ADVANCED > Administration > Diagnostics.
The Diagnostics page displa

ys.
5. Click the 
Reboot button.
A confirmation pop-up window displays.
6. Click the 
OK button.
The 
modem router reboots.
Quick Tips for Troubleshooting If your network is unresponsive or does not function normally, try the following:
Restart your network:
1.Turn off and unplug the DSL, cable, or fiber modem.
2. Turn off the modem router.
3. Plug in the DSL, cab

le, or fiber modem and turn it on. Wait two minutes.
4. Turn on the 
modem router and wait two minutes.
If netw
ork problems still occur, make sure that your ISP does not require you to use the MAC address of the
computer that was used to initially register the ISP account. If your ISP does require that you do this, you must
change the modem router MAC address that the modem router uses. For more information, see one of the
f

ollowing sections:
• Manually Set Up an ADSL Internet Connection on page 
49
• Manually Set Up a VDSL Internet Connection on page 
60
• Manually Set Up a Cable or Fiber Internet Connection on page 
69
If you cannot connect over an Ethernet cable to the modem router
, try the following:
• Make sure that the Ethernet cables are securely plugged in.
• Make sure that your computer or device does not use a static IP address but is configured to receive an IP
address automatically with DHCP. (For most devices, DHCP is the default setting.)
If you cannot connect over WiFi to the 
modem router, try the following:
• Make sure that the WiFi settings in your WiFi device and 
modem router match exactly. Diagnostics and Troubleshooting
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Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000 
						

							For a device that is connected over WiFi, the WiFi network name (SSID) and WiFi security settings of the modem
router and WiFi computer must match exactly. The default SSID and password are on the product label (see
Bottom Panel Product Label
 on page 17).
• Mak
e sure that your WiFi device supports the security that you are using for your WiFi network (WEP, WPA, or
WPA2). For information about WiFi security settings, see Manage the Basic WiFi Settings and WiFi Security of
the Main Netw

ork
 on page 95.
• Mak
e sure that the modem router
 is not too far from your WiFi device or too close. Move your WiFi device near
the 
modem router but at least 6 feet (1.8 meters) away and see if the signal strength improves.
• Make sure that the WiFi signal is not blocked by objects between the 
modem router and your WiFi device.
• Mak
e sure that the WiFi LED on the 
modem router is not off.
If this LED is off
, both WiFi radios might be disabled. For more information about the WiFi radios, see Control
the 

WiFi Radios on page 113.
• Mak

e sure that the modem router
’s SSID broadcast is not disabled.
If the 
modem router’s SSID broadcast is disabled, the WiFi network name is hidden and does not display in your
WiFi de
vice’s scanning list. To connect to a hidden network, you must enter the network name and the WiFi
password. For more information about the SSID broadcast, see 
Manage the Basic WiFi Settings and WiFi
Security of the Main Network
 on page 95.
• Make sure that your WiFi device does not use a static IP address but is configured to receive an IP address
automatically with DHCP. (For most devices, DHCP is the default setting.)
Troubleshoot With the LEDs When you turn on the power, the LEDs light as described here:
1.Two seconds after the power is first applied, the Power LED   lights solid amber for about 10 seconds, turns
off for about 20 seconds, and then lights solid amber again.
2. About 2 minutes after the power is first applied, the Power LED lights solid white, indicating that the startup
procedure is complete and the modem router
 is ready.
Verify the following:
• The Internet LED   is blinking white or solid white.
• The DSL LED   is solid white.
• The 2.4 GHz WiFi LED   and 5 GHz WiFi LED   are blinking white or solid white (unless you turned off
the WiFi radios).
• A USB 3.0 port LED   is blinking white or solid white for any connected USB device.
• An Ethernet port LED   is blinking white or solid white for any connected and powered-on Ethernet device.
• The WiFi LED   is solid white (unless you turned off the WiFi radios).
• The WPS LED   is solid white.
Diagnostics and Troubleshooting
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							You can use the LEDs for troubleshooting. For more information, see the following sections:
•
Power LED Is Off on page 278
• Power LED Remains Solid Amber on page 278
• WiFi LED Is Off
 on page 278
• T
roubleshoot the Internet Connection
 on page 279
P
ower LED Is Off
If the Power LED   and other LEDs are off when your modem router
 is turned on, do the following:
• Make sure that the Power On/Off
 button on the back is in the on position, that is, it is pushed in.
• Make sure that the power cord is correctly connected to your modem router and that the power supply adapter
is correctly connected to a functioning po

wer outlet.
• Make sure that you are using the 12 VDC 3.5A power adapter that NETGEAR supplied for this product.
If the error persists

, a hardware problem might exist. For recovery instructions or help with a hardware problem,
contact technical support at 
netgear.com/support.
P
ower LED Remains Solid Amber
Two seconds after the power is first applied, the Power LED   lights solid amber for about 10 seconds, turns off
for about 20 seconds, and then lights solid amber again. About two minutes after the power is first applied, the Power
LED lights solid white, indicating that the startup procedure is complete and the modem router
 is ready.
If the Power LED remains solid amber and does not turn solid white, a failure occurred or the modem router
 is
malfunctioning.
If the Power LED does not turn solid white, do the following:
1. Turn the power off and back on and wait several minutes to see if the 
modem router recovers.
2. If the modem router does not reco
ver, press and hold the Reset button to return the modem router to its factory
settings

.
If the error persists, a hardware problem might exist. For recovery instructions or help with a hardware problem,
contact technical support at 
netgear.com/support.
WiFi LED Is Off
If the 
WiFi LED   remains off, check to see if both radios on the modem router are disabled (see Control the WiFi
Radios
 on page 113). By default, both radios are enabled and the WiFi LED lights solid white. Diagnostics and Troubleshooting
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							You Cannot Log In to the Modem Router
If y
ou are unable to log in to the modem router from a computer on your local network and use the modem router
w

eb pages, check the following:
• If you are using an Ethernet-connected computer, check the Ethernet connection between the computer and
the 
modem router.
• Make sure that the IP address of your computer is on the same subnet as the 
modem router. If you are using
the recommended addressing scheme
, your computer’s address is in the range of 192.168.0.2 to 192.168.0.254.
• Make sure that your computer can reach the modem router’s DHCP server. Recent versions of Windows and
Mac OS gener

ate and assign an IP address if the computer cannot reach a DHCP server. These autogenerated
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 modem router
 and reboot your computer.
• If your modem router’s IP address was changed and you do not know the current IP address, use an IP scanner
application to detect the IP address. If you still cannot find the IP address, clear the modem router’s configuration
to factory defaults. This sets the modem router’s IP address to 192.168.0.1. For more information, see Return
the Modem Router to Its F

actory Default Settings on page 223 and Factory Settings on page 289.
• Mak

e 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 modem router behind an existing router in your network, set up the modem
router
 as a WiFi access point (see Use the Modem Router as a WiFi Access Point on page 119).
T
roubleshoot the Internet Connection If your 
modem router cannot access the Internet, check the DSL connection, then the WAN TCP/IP connection.
Troubleshoot the DSL Link
If your 
modem router is unable to access the Internet, first determine whether the DSL link with the service provider
is working. The DSL LED indicates the state of this connection.
DSL LED Is Solid White
If the DSL link LED lights solid white  , the DSL connection is good. You can be confident that the service provider
connected your line correctly and that your wiring is correct.
DSL LED Is Blinking White
If the DSL LED is blinking white  , your modem router is attempting to make a DSL connection with the service
pro

vider. If the modem router establishes a DSL connection, the DSL LED turns solid white. This connection process
gener

ally lasts several minutes. Diagnostics and Troubleshooting
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							If the DSL LED does not turn solid white, disconnect all telephones on the line. If this solves the problem, reconnect
the telephones one at a time, being sure to use a microfilter on each telephone. If the microfilters are connected
correctly, you can connect all your telephones.
If disconnecting telephones does not result in a solid white DSL LED, a problem with your wiring might exist. If the
telephone company tested the DSL signal at your network interface device (NID), then wiring in your house might
be of poor quality.
DSL LED Is Off or Internet LED Is Off
If the DSL LED is off 
, the Internet LED is off  , or both are off, disconnect all telephones on the line. If this
solves the problem, reconnect the telephones one at a time, being sure to use a microfilter on each telephone. If
the microfilters are connected correctly, you can connect all your telephones.
If disconnecting telephones does not result in a blinking white or solid white DSL LED, check the following:
• Check to see that the telephone company made the connection to your line and tested it.
• Verify that you are connected to the correct telephone line. If more than one phone line is installed, be sure that
you are connected to the line with the DSL service. It might be necessary to use a swapper if your DSL signal
is on pins 1 and 4 or the RJ-11 jack. The modem router uses pins 2 and 3.
Internet LED Is Off
If the Inter
net LED is off  , the 
modem router cannot connect to the Internet. Verify the following:
• Chec
k to see that your login credentials are correct or that the information you entered for the ISP connection
is correct. For more information, see one of the following sections:
• Manually Set Up an ADSL Internet Connection
 on page 49
• Man
ually Set Up a VDSL Internet Connection on page 
60
• Manually Set Up a Cable or Fiber Internet Connection on page 
69
• Check to see if your ISP is experiencing a problem—it might not be that the modem router cannot connect to
the Inter

net, but rather that your ISP cannot provide an Internet connection.
Obtain an Internet IP Address
If the 
modem router cannot access the Internet but the Internet LED   lights solid white, see if the modem router
can obtain an Inter
net IP address from the ISP. Unless the modem router is assigned a static IP address, the modem
router
 requests an IP address from the ISP. You can determine whether the request was successful using the modem
router
’s web pages. Diagnostics and Troubleshooting
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