NETGEAR D6220

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Troubleshooting

This chapter provides information to help you diagnose and solve problems you might experience with your

modem router. If you do not find the solution here, check the NETGEAR support site at netgear.com/support

for product and contact information.

The chapter contains the following sections:

• Quick Tips for Troubleshooting on page 251

• Troubleshoot With the LEDs on page 252

• You Cannot Log In to the Modem Router on page 253

• Troubleshoot the Internet Connection on page 254

• Changes Are Not Saved on page 258

• Troubleshoot the WiFi Connectivity on page 258

• Troubleshoot Your Network Using the Ping Utility on page 259

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Main Page

Default Chapter1
- User Manual1
- Table of Contents3
Chapter 1 Hardware Overview of the Modem Router10
- Unpack Your Modem Router10
- Top Panel with Leds10
- Back Panel with Ports, Buttons, and a DC Connector12
- Bottom Panel Product Label13
Chapter 2 Install and Access the Modem Router and Its Network15
Position Your Modem Router15
- Install and Access the Modem Router and Its Network15
Connect to the Modem Router16
- Connect to the Modem Router through an Ethernet Cable16
- Join the Wifi Network of the Modem Router16
  - Manual Method16
  - Wi-Fi Protected Setup Method17
- Types of Logins17
- Automatic Internet Setup17
Set up Your Modem Router for DSL Service18
- DSL Service18
- Cable the Modem Router for DSL Service and Access the Modem Router19
Set up the Modem Router for Cable Service25
- Log in to the Modem Router after Setup to View or Change Settings31
Change the Language32
Let the Modem Router Automatically Update Its Firmware33
Access the Modem Router with the NETGEAR Genie App34
Chapter 3 Manage the Internet Settings Manually36
Use the Internet Setup Wizard after Initial Setup36
- Manage the Internet Settings Manually36
Manually Set up an ADSL Internet Connection41
- Specify an ADSL Connection Without a Login41
- Specify an ADSL Connection with a Login and Pppoa or Pppoe Service46
Manually Set up a VDSL Internet Connection51
- Specify a VDSL Connection Without a Login51
- Specify a VDSL Connection with a Login and Pppoe Service56
Manually Set up a Cable Internet Connection60
- Specify a Cable Connection Without a Login60
- Specify a Cable Connection with a Login and Pppoa or Pppoe Service65
Specify an Ipv6 Internet Connection69
- Ipv6 Internet Connections and Ipv6 Addresses69
- Use Auto Detect for an Ipv6 Internet Connection70
- Set up an Ipv6 6To4 Tunnel Internet Connection72
- Set up an Ipv6 Pass through Internet Connection73
- Set up an Ipv6 Fixed Internet Connection74
- Set up an Ipv6 DHCP Internet Connection75
- Manage the MTU Size81
  - MTU Concepts81
  - Change the MTU Size82
Chapter 4 Manage the Basic Wifi Network Settings85
- Manage the Basic Wifi Settings and Wifi Security of the Main Network85
- Use WPS to Add a Device to the Wifi Network94
  - Use WPS with the Push Button Method94
  - Use WPS with the PIN Method95
- Manage the Basic Wifi Settings and Wifi Security of the Guest Network96
- Control the Wifi Radios100
  - Use the Wifi On/Off Button100
  - Enable or Disable the Wifi Radios100
Chapter 5 Control Access to the Internet102
- Set up Parental Controls103
- Allow or Block Access to Your Network104
- Use Keywords to Block Internet Sites109
- Manage Simple Outbound Firewall Rules for Services and Applications113
- Set up a Schedule for Keyword Blocking and Outbound Firewall Rules118
- Set up Security Event Email Notifications120
Chapter 6 Optimize Performance123
- Optimize Traffic with Qos123
  - Optimize Performance123
- Manage Custom and Default Qos Priority Rules124
- Manage Wi-Fi Multimedia Quality of Service131
- Manage Beamforming132
- Improve Network Connections with Universal Plug and Play133
  - Modem Router135
Chapter 7 Share a Storage Device Attached to the Modem Router136
- USB Device Requirements136
- Connect a USB Device to the Modem Router136
  - Share a Storage Device Attached to the Modem Router136
- Access a Storage Device Connected to the Modem Router137
  - Access the Storage Device from a Windows Computer137
  - Access the Storage Device from a Mac137
- Map a USB Device to a Windows Network Drive138
- Back up Windows Computers with Readyshare Vault138
- Manage Access to a Storage Device139
- Enable FTP Access Within Your Network141
- View Network Folders on a Device143
- Add a Network Folder on a Storage Device144
  - Change a Network Folder, Including Read and Write Access, on a USB Drive146
- Approve Storage Devices148
- Safely Remove a USB Device149
Chapter 8 Manage Dynamic DNS and Access Storage Devices through the151
Internet151
- Set up and Manage Dynamic DNS152
- Access Storage Devices through the Internet155
Chapter 9 Use the Modem Router as a Media Server160
- Specify Readydlna Media Server Settings161
- Play Media from a USB Device on Tivo161
Chapter 10 Share a USB Printer165
- Install the Printer Driver and Cable the Printer165
- Download the Readyshare Printer Utility165
- Install the Readyshare Printer Utility165
- Use the Shared Printer167
  - Manually Connect and Print167
  - Print and Release the Printer168
- View or Change the Status of a Printer168
Use the Scan Feature of a Multifunction USB Printer169
Manage the NETGEAR USB Control Center Settings170
- Turn off Automatic Startup of the NETGEAR USB Control Center170
- Change the NETGEAR USB Control Center Language171
- Specify the Time-Out171
Chapter 11 Manage the WAN and LAN Network Settings173
Change the Physical WAN Connection Preference173
Enable and Configure a VLAN173
- Manage the WAN and LAN Network Settings173
Set up a Bridge for a Port Group or VLAN Tag Group176
- Set up a Bridge for a Port Group176
- Set up a Bridge for a VLAN Tag Group177
Manage the WAN Security Settings179
Set up a Default DMZ Server180
Manage NAT Filtering181
Manage the SIP Application-Level Gateway181
Manage IGMP Proxying182
Manage the Modem Routers's LAN IP Address Settings182
Manage the Router Information Protocol Settings183
Manage Reserved LAN IP Addresses184
- Reserve a LAN IP Address184
- Change a Reserved IP Address185
- Remove a Reserved IP Address Entry186
Manage the DHCP Server Address Pool186
Disable the Built-In DHCP Server187
Change the Modem Router's Device Name188
Set up and Manage Custom Static Routes189
- Set up a Static Route189
- Change a Static Route190
- Remove a Static Route191
Chapter 12 Manage the Modem Router and Monitor the Traffic193
Update the Firmware of the Modem Router193
- Check for New Firmware and Update the Modem Router193
- Manage the Modem Router and Monitor the Traffic193
- Manually Upload New Firmware and Update the Modem Router194
Manage the Configuration File of the Modem Router195
- Back up the Settings195
- Restore the Settings196
Change the Admin Password196
Set up Password Recovery197
Recover the Admin Password198
Return the Modem Router to Its Factory Default Settings198
- Use the Reset Button199
- Erase the Settings199
Disable LED Blinking or Turn off Leds200
View the Status and Statistics of the Modem Router201
- View Information about the Modem Router and the Internet and Wifi Settings201
- View Devices Currently on the Network210
- Manage the Activity Log210
  - View, Email, or Clear the Logs211
  - Specify Which Activities Are Logged212
- Monitor and Meter Internet Traffic212
- Manage the Modem Router Remotely218
- Use the Modem Router as a DSL Modem Only219
Chapter 13 Manage the Advanced Wifi Features220
- Set up a Wifi Schedule221
- Manage the WPS Settings222
- Manage Advanced Wifi Settings224
- Use the Modem Router as a Wifi Access Point Only225
Chapter 14 Use VPN to Access Your Network228
- Set up a VPN Connection228
- Use a VPN Tunnel on a Windows Computer232
- Use VPN to Access the Modem Router's USB Device and Media from a Windows Computer234
- Use VPN to Access Your Internet Service at Home234
Chapter 15 Manage Port Forwarding and Port Triggering237
- Manage Port Forwarding to a Local Server for Services and Applications238
- Manage Port Triggering for Services and Applications243
Chapter 16 Troubleshooting251
- Quick Tips for Troubleshooting251
- Troubleshoot with the Leds252
- You Cannot Log in to the Modem Router253
- Troubleshoot the Internet Connection254
- Changes Are Not Saved258
- Troubleshoot the Wifi Connectivity258
- Troubleshoot Your Network Using the Ping Utility259
  - Test the LAN Path to Your Modem Router259
  - Test the Path from Your Computer to a Remote Device260
Appendix A Supplemental Information261
- Factory Settings262
- Technical Specifications264

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