NETGEAR N750 Troubleshooting with the LEDs, Network Settings, Power LED Is Off or Blinking

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N750 Wireless Dual Band Gigabit Router WNDR4000 User Manual

Network Settings

Make sure that the network settings of the computer are correct.

•Wired and wirelessly connected computers need to have 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 in the Attached Devices screen.

Troubleshooting with the LEDs

After you turn on power to the router, the following sequence of events should occur:

1.When power is first applied, verify that the Power LED is on.

2.After approximately 2 minutes, verify that:

•The Power LED is solid green.

•The Internet LED is on.

•A numbered Ethernet port light is on for any local port that is connected to a computer. This indicates that a link has been established to the connected device.

The LEDs on the front panel of the router can be used for troubleshooting.

Power LED Is Off or Blinking

•Make sure that the power cord is securely connected to your router and that the power adapter is securely connected to a functioning power outlet.

•Check that you are using the 12V DC, 2.5A power adapter that NETGEAR supplied for this product.

•If the Power LED alternately blinks green every second, the router software 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, you have a hardware problem. For recovery instructions, or help with a hardware problem, contact Technical Support at www.netgear.com/support.

LEDs Never Turn Off

When the router is turned on, the LEDs turns on for about 10 seconds and then turn off. If all the LEDs stay on, there is a fault within the router.

If all LEDs are still on 1 minute after power-up:

•Cycle the power to see if the router recovers.

Chapter 8. Troubleshooting 89

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Contents N750 Wireless Dual Band Gigabit Router WNDR4000 Statement of Conditions Technical SupportTrademarks Contents Content Filtering Settings Advanced Settings Appendix a Supplemental Information Hardware Setup Front Panel Unpack Your Wireless RouterHardware Features Icon Description Label Back PanelRouter Stand Position Your RouterDisconnect the modem from your computer Cable Your RouterConnect the modem to the router Verify the CablingHardware Setup Set Up Your Internet Connection Use Standard TCP/IP Properties for Dhcp Wireless Router Setup PreparationReplace an Existing Router Gather ISP InformationLog In to the Router Router Interface Upgrade FirmwareSetup Wizard Manual Setup Basic Settings Internet Service Provider ISP does not require login ISP does require loginInternet IP Address Domain Name and MAC Address FieldsUnsuccessful Internet Connection Change PasswordLog Out Manually Types of LoginsTo change the password Wireless Settings Wireless Security Options Wireless Security CompatibilityTurn Off Wireless Connectivity Security BasicsRestrict Access by MAC Address Disable Ssid BroadcastAdd Clients Computers or Devices to Your Network Manual MethodWPS Button Method Wi-Fi Protected Setup WPS MethodConsider Every Device on Your Network Wireless Settings ScreenTo view or change wireless settings View or Change Wireless SettingsRegion Wireless Settings Screen FieldsTo set up a wireless guest network Wireless Guest NetworksSet Up WPA Security Option and Passphrase Wireless Settings Content Filtering Settings Logs Examples of Log Messages Activation and AdministrationDelete Keyword or Domain Keyword Blocking of Http TrafficSpecify a Trusted Computer Block ServicesTo block access to Internet services Content Filtering Settings Set the Time Zone Schedule Services Turn On Security Event Email Notification Port Forwarding To configure port forwarding to a local server Add a Custom ServiceService Select Advanced Port Forwarding/Port TriggeringTo make a local Web server public To add a custom serviceApplication Example Making a Local Web Server Public Port Triggering To set up port triggeringClear the Disable Port Triggering check box Content Filtering Settings Network Maintenance Automatic Firmware Check Upgrade the FirmwareTo turn off the automatic firmware check at login Manually Check for Firmware UpgradesClear the Check for Updated Firmware Upon Log-in check box Stop the Automatic Firmware CheckBack Up Manage the Configuration FileInternet Port Settings RestoreView Router Status EraseShow Statistics Wireless PortLAN Port Local Ports Port Connection StatusView Attached Devices USB Storage Share Photos within Your Home Network USB Drive RequirementsFile-Sharing Scenarios Share Large Files with FTP over the Internet USB Storage Basic SettingsEdit a Network Folder Basic Settings Screen Fields and ButtonsUSB Storage Advanced Settings Access Method Create a Network Folder Unmount a USB DriveSelect the Allow only approved devices check box Approved USB DevicesConnect to the USB Drive from a Remote Computer Access the Modem Router’s USB Drive Remotely with FTP Connect to the USB Drive with Microsoft Network SettingsSelect Maintenance Router Status Locate the Internet Port IP AddressConfiguring Windows 98SE and Windows ME Advanced Settings WAN Setup To assign a computer or server to be a default DMZ server Default DMZ ServerDynamic DNS To set up Dynamic DNSSelect the Use a Dynamic DNS Service check box LAN IP address LAN SetupTo change the LAN settings IP Address Reservation LAN Setup Screen SettingsTo reserve an IP address To edit or delete a reserved address entryQoS for Internet Access Quality of Service QoSTo view or change advanced wireless settings Advanced Wireless SettingsWireless Card Access List Wireless Advanced Settings 2.4 GHz and 5 GHzWPS Settings Remote Management Access Select the Turn Remote Management On check box To configure your router for remote managementStatic Route Example Static RoutesAdd a Static Route Universal Plug and Play Traffic Meter IPv6To monitor traffic on your wireless router Wireless Bridging and Repeating Networks Advanced USB SettingsAdvanced Settings To set up a repeater with wireless client association Set Up a Repeater with Wireless Client AssociationAdvanced Settings Troubleshooting Wireless Settings Power LEDQuick Tips Sequence to Restart Your NetworkNetwork Settings Troubleshooting with the LEDsPower LED Is Off or Blinking LEDs Never Turn OffInternet or Ethernet Port LEDs Are Off Cannot Log In to the Wireless RouterWireless LED Is Off To check the WAN IP address Cannot Access the InternetIncorrect Date or Time Changes Not SavedWireless Signal Strength Wireless ConnectivityRestoring the Factory Settings and Password Feature Default Behavior Factory SettingsDMZ WNDR4000 Router Specifications Technical SpecificationsEurope EU Declaration of Conformity Netgear Dual Band WirelessRegulatory Compliance Information 1999/5/ΕΚ FCC Information to User FCC Requirements for Operation in the United StatesIndustry Canada FCC CautionImportant Note Radiation Exposure Statement AvertissementIndex Index TCP/IP Wireless security 26 wireless security options