Netgear Wndr4500v3 N900 Wifi Dual Band Gigabit Router Premium Edition User Manual

							Troubleshooting 
151  N900 WiFi Router
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 screen or tab, or your changes are lost. 
•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 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. 
						

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152 N900 WiFi Router 
To ping the router from a Windows computer:
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 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 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 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 Test 
the LAN Path to Your Router on page 151.
If you do not receive replies, check the following: 
						

							Troubleshooting 
153  N900 WiFi Router
•Check that IP address of your router is listed as the default gateway for your computer. If 
DHCP assigns the IP configuration of your computers, this information is not visible in 
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 screen.
•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.  
						

							154
A
A.   Supplemental Information
This appendix includes technical information about your router.
This appendix covers the following topics: 
•Factory Settings 
•Technical Specifications  
						

							 Supplemental Information
155  N900 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 Setting
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 
						

							 Supplemental Information
156 N900 WiFi Router 
WirelessWireless communicationEnabled
SSID nameSee the product label
SecurityWPA2-PSK (AES)
Broadcast SSIDEnabled
Transmission speedAuto1
Country/regionUnited States in the US; otherwise, varies by region
RF channelAuto for 2.4 GHz, CH 44 for WW SKU and CH 153 for 
North America  SKU
Operating modeUp to 450 Mbps at 2.4 GHz, 450 Mbps at 5 GHz
1. 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 Setting 
						

							 Supplemental Information157
 N900 WiFi Router
Technical Specifications
Table 4.  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: 
 100–240V,  50/60  Hz  input
•  UK, Australia: 
 100–240V,  50/60  Hz,  input
•  Europe: 100–240V
 , 50/60 Hz input
•  All regions (output): 12V/2.5 
 ADC output
Dimensions 165 x 80 x 234 mm (6.5 x 3.15 x 9.2 in.)
Weight 571 g (1.26 lb)
Operating temperature 0° to 40°C
  (32º to 104ºF)
Operating humidity 90% maximum relative humidity, noncondensing
Electromagnetic emissions FCC Part 15 Class B
VCCI 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.
1
1. Maximum wireless signal rate derived from IEEE Standard 802.11 specif\
ications. Actual throughput can vary. Network 
conditions and environmental factors, including volume of network traffi\
c, building materials and construction, and network 
overhead, lower actual data throughput rate .
Radio data ratesAuto Rate Sensing
Data encoding standards • IEEE® 802.1
 1 b/g/n 2.4 GHz
•  IEEE® 802.1
 1 a/n 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 • 450 Mbps @ 2.4 GHz
•  450 Mbps @ 5 GHz 
802.11 security WPA2-PSK and WPA/WPA2