NETGEAR DGND4000 Troubleshoot with the LEDs

Troubleshooting

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N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000

Troubleshoot with the LEDs

After you turn on power to the wireless modem router, the following sequence of events

should occur:

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

2. Verify that the Power LED turns red within a few seconds, indicating that the self-test is

running.

3. After approximately 30 seconds, verify:

•The Power LED is solid green.

•The Internet LED is lit.

•The Ethernet LED is lit for any local port that is connected to a computer. This LED

indicates that a link has been established to the connected device.

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

Power LED Is Off or Blinking

•Make sure that the power cord is securely connected to your wireless modem router and

that the power adapter is securely connected to a functioning power outlet.

•Make sure that you are using the 12V DC, 5A power adapter that NETGEAR supplied for

this product.

•If the Power LED blinks slowly and continuously, the wireless modem router firmware is

corrupted. This situation can happen if a firmware upgrade is interrupted, or if the wireless

modem 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.

Power LED Stays Red

When the wireless modem router is turned on, the Power LED turns red for about 20 seconds

and then turns green. If the LED does not turn green, the wireless modem router has a

problem.

If the Power LED is still red one minute after you turn on power to the wireless modem router:

1. Turn the power off and back on to see if the wireless modem router recovers.

2. Press and hold the Restore Factory Settings button to return the wireless modem

router to its factory settings. See Factory Settings on page 146.

If the error persists, you might have a hardware problem and should contact technical

support at www.netgear.com/support.

Contents

Main Page Contents Chapter 1 Hardware Setup Chapter 2 Get Started with NETGEAR genie Chapter 3 NETGEAR genie BASIC Settings Chapter 4 NETGEAR genie ADVANCED Home Chapter 5 USB Storage Chapter 6 USB Printer Control Chapter 7 Security Chapter 8 Administration Chapter 9 Advanced Settings Chapter 10 Troubleshooting Appendix A Supplemental Information Index Get to know your wireless router Page Page Page Unpack Your New Router Hardware Features Label Back Panel Front Panel Table 1. WPS button and LED N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000 Table 2. Wireless button Table 3. USB port Table 4. Internet LED Table 5. DSL LED N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000 Table 6. 5 GHz Wireless LED Table 7. 2.4 GHz Wireless LED Table 8. USB LED Position Your Wireless Router ADSL Microfilters One-Line ADSL Microfilter (Not Included) Two-Line ADSL Microfilter (Included) Summary Cable Your N750 Wireless Modem Router Verify the Cabling Connect to the wireless modem router Prepare to Set Up the Wireless Modem Router Use Standard TCP/IP Properties for DHCP Gather ISP Information Wireless Devices and Security Settings Types of Logins and Access NETGEAR genie Setup Use NETGEAR genie after Installation Upgrade Wireless Modem Router Firmware Wireless Modem Router Dashboard (BASIC Home Screen) Add Wireless Devices or Computers to Your Network Manual Method Wi-Fi Protected Setup (WPS) Method Page Your Internet connection and network Internet Basic Settings Internet Basic Settings Screen Fields Attached Devices Page Page ReadySHARE USB Storage and Printer USB Storage (Basic Settings) ReadySHARE Printer Basic Wireless Settings Page Wireless Settings Screen Fields Wireless Network Security Options Settings Change WPA Security Option and Passphrase Guest Networks Guest Network Wireless Security Options NETGEAR genie App NETGEAR genie Mobile App Specify custom settings Setup Wizard Page WPS Wizard VPN Wizard Page Setup Menu ADSL Setup WAN Setup Default DMZ Server Change the MTU Size Page LAN Setup LAN Setup Screen Settings LAN TCP/IP Setup Use Router as a DHCP Server Address Reservation Use the Wireless Modem Router as a DHCP Server Address Reservation Quality of Service Setup Enable WMM QoS for Wireless Multimedia Applications Set Up QoS for Internet Access QoS for Applications and Online Gaming Page QoS for a Wireless Modem Router LAN Port QoS for a MAC Address Edit or Delete an Existing QoS Policy Access and configure a USB storage drive USB Drive Requirements ReadySHARE Access File-Sharing Scenarios Share Photos Store Files in a Central Location for Printing Share Large Files over the Internet USB Storage Basic Settings Add or Edit a Network Folder USB Storage Advanced Settings Available Network Folders Safely Remove a USB Drive Media Server Settings Specify Approved USB Devices Connect to the USB Drive from a Remote Computer Access the Wireless Modem Routers USB Drive Remotely Using FTP Access and configure a USB printer Page Control Center Configuration USB Printer Scan with a Multifunction Printer Keep unwanted content out of your network Keyword Blocking of HTTP Traffic Firewall Rules Page Add Custom Services to Allow or Block Page Schedule for Firewall Rules Security Event Email Notifications Manage your network Upgrade the Wireless Modem Router Firmware View Wireless Modem Router Status Router Information Internet Port Show Statistics Button Connection Status Button Wireless Settings (2.4 GHz) and Wireless Settings (5 GHz) Guest Network (2.4 GHz) and Guest Network (5 GHz) View VPN Status View Logs of Web Access or Attempted Web Access Attached Devices Manage the Configuration File Back Up Settings Restore Configuration Settings Erase Set Password Password Recovery Diagnostics Page Time Machine Set Up Time Machine Access the Connected USB Hard Drive Administration N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000 Machi e Time Machine Show All N m Before You Back Up a Large Amount of Data Page Change the Partition Scheme Fine-tuning your network Advanced Wireless Settings Page Page Wireless Repeating Function (WDS) Wireless Repeating Function Set Up the Base Station Set Up a Repeater Unit Port Forwarding and Triggering Remote Computer Access Basics Port Triggering to Open Incoming Ports Page Port Forwarding to Permit External Host Communications How Port Forwarding Differs from Port Triggering Set Up Port Forwarding to Local Servers Page Add a Custom Service Edit or Delete a Port Forwarding Entry Application Example: Making a Local Web Server Public Set Up Port Triggering Page Dynamic DNS Static Routes Page Page Remote Management USB Settings Universal Plug and Play Page IPv6 Traffic Meter Page Device Mode VPN Policies Page Add or Edit an Auto VPN Policy Page Page Add or Edit a Manual VPN Policy Page Diagnose and solve problems Quick Tips Sequence to Restart Your Network Check Ethernet Cable Connections Wireless Settings Network Settings Troubleshoot with the LEDs Power LED Is Off or Blinking Power LED Stays Red LEDs Never Turn Off Internet or Ethernet Port LEDs Are Off Wireless LEDs Are Off The Push 'N' Connect (WPS) Button Blinks Green Cannot Log In to the Router Cannot Access the Internet Page Troubleshoot PPPoE Troubleshoot Internet Browsing Changes Not Saved Incorrect Date or Time Wireless Connectivity Wireless Signal Strength Restore the Factory Settings and Password Troubleshoot Your Network Using the Ping Utility Test the LAN Path to Your Router Test the Path from Your Computer to a Remote Device Page A Factory Settings Table 13. Factory default settings Table 13. Factory default settings (continued) Technical Specifications Table 14. DGND4000 Router specifications Table 14. DGND4000 Router specifications (continued) Index A B C D G H I K L O P Q R S U W