User Manual
Table Of Contents
- Contents
- 1. Hardware Overview of the Router
- 2. Connect to the Network and Access the Router
- 3. Specify Your Internet Settings
- Use the Internet Setup Wizard
- Manually Set Up the Internet Connection
- Specify an IPv6 Internet Connection
- IPv6 Internet Connections and IPv6 Addresses
- Use Auto Detect for an IPv6 Internet Connection
- Use Auto Config for an IPv6 Internet Connection
- Set Up an IPv6 6to4 Tunnel Internet Connection
- Set Up an IPv6 Pass-Through Internet Connection
- Set Up a Fixed IPv6 Internet Connection
- Set Up an IPv6 DHCP Internet Connection
- Set Up an IPv6 PPPoE Internet Connection
- Manage the MTU Size
- 4. Control Access to the Internet
- 5. Manage the Basic WiFi Network Settings
- 6. Share a Storage Device Attached to the Router
- USB Device Requirements
- Connect a USB Device to the Router
- Access a Storage Device Connected to the Router
- Map a USB Device to a Windows Network Drive
- Manage Access to a Storage Device
- Enable FTP Access Within Your Network
- View Network Folders on a Device
- Add a Network Folder on a Storage Device
- Change a Network Folder, Including Read and Write Access, on a USB Drive
- Approve USB Devices
- Safely Remove a USB Device
- 7. Share a USB Printer
- 8. Manage the WAN and LAN Network Settings
- View or Change WAN Settings
- Set Up a Default DMZ Server
- Manage IGMP Proxying
- Manage VPN Pass-Through
- Manage NAT Filtering
- Manage the SIP Application-Level Gateway
- Manage the LAN IP Address Settings
- Manage the Router Information Protocol Settings
- Manage the DHCP Server Address Pool
- Manage Reserved LAN IP Addresses
- Disable the Built-In DHCP Server
- Change the Router’s Device Name
- Set Up and Manage Custom Static Routes
- Set Up a Bridge for a Port Group or VLAN Tag Group
- Improve Network Connections With Universal Plug-N-Play
- 9. Manage the Router
- Update the Firmware of the Router
- Change the admin Password
- Set Up Password Recovery
- Recover the admin Password
- Manage the Configuration File of the Router
- Return the Router to Its Factory Default Settings
- View the Status and Statistics of the Router
- Manage the Activity Log
- View Devices Currently on the Network
- 10. Manage the Advanced WiFi Features
- 11. Manage Port Forwarding and Port Triggering
- 12. Troubleshooting
- A. Supplemental Information
Test the Path From Your Computer to a Remote Device
To 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 <IP address>
where <IP address> 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 149.
3.
If you do not receive replies, check the following:
•
Check to see 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 to see 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 on 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.
User Manual150Troubleshooting
AC1200 WiFi Router Model R6120










