Netgear R7000 Nighthawk Ac1900 Smart Wifi Router User Manual

Specify Internet Port Settings 
181  Nighthawk AC1900 Smart WiFi Router
5. The IRC server sends a return message to your router using the NAT-assigned source port 
(for example, port 33333) as the destination port. The IRC server also sends an “identify” 
message to your router with destination port 113.
6. When your 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 router...

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14.   Troubleshooting
This chapter provides information to help you diagnose and solve problems you might have with 
your router. If you do not find the solution here, check the NETGEAR support site at 
http://support.netgear.com for product and contact information.
This chapter contains the following sections:
•Quick Tips 
•Troubleshoot with the LEDs 
•Cannot Log In to the Router 
•Cannot Access the Internet 
•Changes Not Saved 
•Wireless Connectivity 
•Troubleshoot Your Network Using the Ping...

Troubleshooting 
183  Nighthawk AC1900 Smart WiFi Router
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...

Troubleshooting 184
Nighthawk AC1900
 Smart  WiFi Router 
Troubleshoot with the LEDs
By default, the router is set with standard LED settings. If you disable\
d blinking for the LEDs 
or turned off all LEDs except the Power LED, you must return the LEDs to their stand\
ard 
settings for troubleshooting. For information about controlling the LED \
settings, see Disable 
LED Blinking or Turn off LEDs on page  11 8.
Standard LED Behavior When the Router is Powered On
After you turn on power to the router,...

Troubleshooting 
185  Nighthawk AC1900 Smart WiFi Router
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:
•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 
Troubleshoot Your Network Using the Ping Utility on...

Troubleshooting 
186 Nighthawk AC1900 Smart WiFi Router 
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 192.
•Make sure that your browser has Java, JavaScript, or ActiveX enabled. If you are using 
Internet Explorer,...

Troubleshooting 
187  Nighthawk AC1900 Smart WiFi Router
•Your ISP might check for your computer’s host name. 
Assign the computer host name of your ISP account as the account name in the Internet 
Setup page.
•Your ISP allows only one Ethernet MAC address to connect to Internet and might check 
for your computer’s MAC address. In this case, do one of the following:
-Inform your ISP that you have bought a new network device, and ask them to use the 
router’s MAC address.
-Configure your router to clone...

Troubleshooting 
188 Nighthawk AC1900 Smart WiFi Router 
Troubleshoot Internet Browsing
If your router can obtain an IP address but your computer is unable to load any web pages 
from the Internet, check the following:
•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...

Troubleshooting 
189  Nighthawk AC1900 Smart WiFi Router
•If you want to view the wireless settings for the router, use an Ethernet cable to connect a 
computer to a LAN port on the router. Then log in to the router, and select BASIC > 
Wireless. 
Note:Be sure to click the Apply button if you change settings.
If your wireless device finds your network, but the signal strength is weak, check these 
conditions:
•Is your router too far from your computer, or too close? Place your computer near the 
router,...

Troubleshooting 
190 Nighthawk AC1900 Smart WiFi Router 
Check that the appropriate LEDs are on for your network devices. If your router and 
computer are connected to a separate Ethernet switch, make sure that the link LEDs are 
lit for the switch ports that are connected to your computer and router.
•Wrong network configuration
Verify that the Ethernet card driver software and TCP/IP software are both installed and 
configured on your computer. 
Verify that the IP address for your router and your...