Netgear R6400 Ac1750 Smart Wifi Router 802 11ac Dual Band Gigabit User Manual

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171  AC1750 Smart WiFi Router
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 178.
•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 behind an existing router in your network, 
use bridge mode or set up the router as an access point.
•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.
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 Router Status page.
To check the WAN IP address: 
1. Start your browser, and select an external site such as www.netgear.com.
2. Access the router interface at www.routerlogin.net.
3. Click the ADVANCED tab.
4. 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 168.
If your router is still unable to obtain an IP address from the ISP, the problem might be one of 
the following:
•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. 
						

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172 AC1750 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 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 due to 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.
•Your computer might not be set up with the router as router its TCP/IP gateway.
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.
Troubleshoot PPPoE
If you are using PPPoE, try troubleshooting your Internet connection.
To troubleshoot a PPPoE connection:
1. Launch an Internet browser from a computer or wireless device that is connected to the 
network.
2. Type http://www.routerlogin.net or http://www.routerlogin.com.
A login window opens.
3. 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 page displays. 
						

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4. Click the ADVANCED tab.
The ADVANCED Home page displays.
5. In the Internet Port pane, click the Connection Status button.
The Connection Status window opens.
6. Check the Connection Status window to see if your PPPoE connection is up and working.
If the router is not connected, click the Connect button. 
The router continues to attempt to connect indefinitely.
7. If you cannot connect after several minutes, the router might be set up with an incorrect 
service name, user name, or password, or your ISP might be experiencing a provisioning 
problem.
Unless you connect manually, the router does not authenticate using PPPoE until data is 
transmitted to the network.
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 address during the router’s configuration, restart your computer.
Alternatively, you can configure your computer manually with a DNS address, as 
explained in the documentation for your computer.
•The router might not be configured as the default gateway in your computer.
Reboot the computer and verify that the router address (www.routerlogin.net) is listed by 
your computer as the default 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 the Never dial a 
connection. Other browsers provide similar options.
Changes Not Saved
If the router does not save the changes that you make in the router interface, do the 
following:
•When entering configuration settings, always click the Apply button before moving to 
another page or tab, or your changes are lost.  
						

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174 AC1750 Smart WiFi Router 
•Click the Refresh or Reload button in the web browser. It is possible that the changes 
occurred, but the old settings might be in the web browser’s cache.
Wireless Connectivity
If you are experiencing trouble connecting wirelessly to the router, try to isolate the problem: 
•Does the wireless device or computer that you are using find your wireless network?
If not, check the WiFi LED on the front of the router. If it is off, you can press the WiFi 
On/Off button on the router to turn the router wireless radios back on.
If you disabled the router’s SSID broadcast, then your wireless network is hidden and 
does not display in your wireless client’s scanning list. (By default, SSID broadcast is 
enabled.)
•Does your wireless device support the security that you are using for your wireless 
network (WPA or WPA2)?
•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 but at least 6 feet (1.8 meters) away and see whether the signal strength improves.
•Are objects between the router and your computer blocking the wireless signal?
Troubleshoot Your Network Using the Ping Utility
Most network devices and routers contain a ping utility that sends an echo request packet to 
the designated device. The device then responds with an echo reply. You can easily 
troubleshoot a network using the ping utility in your computer or workstation. 
Test the LAN Path to Your Router
You can ping the router from your computer to verify that the LAN path to your router is set up 
correctly.
You can ping the router from your computer to verify that the LAN path to your router is set up 
correctly.
To ping the router from a Windows computer:
1. From the Windows toolbar, click Start and select Run. 
						

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175  AC1750 Smart WiFi Router
2. In the field provided, type ping followed by the IP address of the router, as in this example:
ping www.routerlogin.net
3. Click the OK button.
You see a message like this one:
Pinging  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 functioning correctly, one of the following problems might be present:
•Wrong physical connections
For a wired connection, make sure that the numbered LAN port LED is lit for the port to 
which you are connected.
Check that the appropriate LEDs are lit 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 computer are correct and that the 
addresses are on the same subnet.
Test the Path from Your Computer to a Remote Device
After verifying that the LAN path works correctly, test the path from your computer to a 
remote device.
1. From the Windows toolbar, click the Start button and select Run.
2. In the Windows Run window, type
ping -n 10 
where  is the IP address of a remote device such as your ISP DNS server.
If the path is functioning correctly, messages display that are similar to those shown in the 
Test the LAN Path to Your Router on page 174.
If you do not receive replies, check the following:
•Check that the IP address of your router is listed in your computer as the default gateway. 
If DHCP assigns the IP configuration of your computers, this information is not visible in  
						

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your computer Network Control Panel. Verify that the IP address of the router 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 subnet mask) is different from the network address of the remote device.
•Check that your cable or DSL modem is connected and functioning.
•If your ISP assigned a host name to your computer, enter that host name as the account 
name in the Internet Setup page.
•Your ISP might be rejecting the Ethernet MAC addresses of all but one of your 
computers.
Many broadband ISPs restrict access by allowing traffic only from the MAC address of 
your broadband modem. Some ISPs additionally restrict access to the MAC address of a 
single computer connected to that modem. If your ISP does this, configure your router to 
“clone” or “spoof” the MAC address from the authorized computer. 
						

							177
A
A.   Supplemental Information
This appendix covers the following topics: 
•Factory Settings 
•Technical Specifications  
						

							 Supplemental Information
178 AC1750 Smart WiFi Router 
Factory Settings
You can return the router to its factory settings. Use the end of a paper clip or a similar object 
to press and hold the Reset button on the back of the router for at least seven seconds. The 
router resets, and returns to the factory configuration settings shown in the following table.
Table 3.  Factory default settings  
FeatureDefault behavior
Router loginUser login URLwww.routerlogin.com or www.routerlogin.net
User name (case-sensitive)admin 
Login password (case-sensitive)password
Internet 
connectionWAN MAC addressUse default hardware address
WAN MTU size1500
Port speedAutoSensing
Local network 
(LAN)LAN IP192.168.1.1
Subnet mask255.255.255.0
DHCP serverEnabled
DHCP range192.168.1.2 to 192.168.1.254
DHCP starting IP address192.168.1.2
DHCP ending IP address192.168.1.254
DMZDisabled
Time zoneGMT for WW except NA and GR, GMT+1 for GR, GMT-8 
for NA
Time adjusted for daylight saving 
timeDisabled
SNMPDisabled
FirewallInbound (communications coming 
in from the Internet)Disabled (except traffic on port 80, the HTTP port)
Outbound (communications going 
out to the Internet)Enabled (all)
Source MAC filteringDisabled 
						

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179  AC1750 Smart WiFi Router
WirelessWireless communicationEnabled
SSID nameSee router label
SecurityWPA2-PSK [AES]
Broadcast SSIDEnabled
Transmission speedAuto*
Country/regionUnited States in the US; otherwise, varies by region
RF channel6 until region selected
Operating modeUp to 450 Mbps at 2.4 GHz, 1300 Mbps at 5 GHz
*. Maximum wireless signal rate derived from IEEE Standard 802.11 specifications. Actual throughput can vary. Network 
conditions and environmental factors, including volume of network traffic, building materials and construction, and network 
overhead, lower actual data throughput rate.
Table 3.  Factory default settings  (continued)
FeatureDefault behavior 
						

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AC1750
 Smart  WiFi Router 
Technical Specifications
Table 4.  R6400 Router specifications  
FeatureDescription
Data and routing protocols TCP/IP, RIP-1, RIP-2, DHCP, PPPoE, PPTP, Bigpond, Dynamic DNS, UPnP, 
and SMB
Power adapter • North America: 
 120V,  60  Hz,  input
•  UK, 
Australia: 240V, 50 Hz, input
• Europe: 230V
 , 50 Hz, input
•  All regions (output): 12V/2.5 
 A-DC output
Dimensions  7.5 x 7.79 x 2.55 in. (191 x 198.5 x 65 mm) 
Weight  0.94 lb (430 g)
Operating temperature 0° to 40° C   (32º to 104º F)
Operating humidity 90% maximum relative humidity, noncondensing
Electromagnetic emissions FCC Part 15 Class B
EN 55 022 (CISPR 22), Class B C-Tick N10947
LAN 10BASE-T or 100BASE-TX or 1000BASE-T, RJ-45
WAN 10BASE-T or 100BASE-TX or 1000BASE-T, RJ-45
Wireless Maximum wireless signal rate complies with the IEEE 802.11 standard.
Radio data rates Auto Rate Sensing
Data encoding standards IEEE 802.11ac 2.0
IEEE 802.11n version 2.0
IEEE 802.11n 256QAM IEEE 802.11g, IEEE 802.11b 2.4 GHz  
IEEE 802.11n, IEEE 802.11a 5.0 GHz
Maximum computers per 
wireless network Limited by the amount of wireless network traffic generated by each node 
(typically 50–70 nodes).
Operating frequency range 2.4 GHz
2.412–2.462 GHz (US) 
2.412–2.472 GHz (Europe ETSI)
5 GHz 5.18–5.24 + 5.745–5.825 GHz (US) 
5.18–5.24 GHz (Europe ETSI)
802.11 security WPA-PSK, WPA2-PSK, and WPA/WPA2