User Manual
Table Of Contents
- User Manual
- Contents
- 1 Hardware Setup
- 2 Connect to the Network and Access the Modem Router
- 3 Specify Your Internet Settings
- 4 Control Access to the Internet
- 5 Share USB Devices Attached to the Modem Router
- USB Storage Device Requirements
- Connect a USB Storage Device to the Modem Router
- Access a USB Drive Connected to the Modem Router From a Windows Computer
- Map a USB Device to a Windows Network Drive
- Access a USB Storage Device That Is Connected to the Modem Router From a Mac
- Control Access to the USB Storage Device
- Use FTP Within the Network
- View or Change Network Folders on a USB Storage Device
- Add a Network Folder on a USB storage device
- Edit a Network Folder on a USB storage device
- Approve USB Devices
- Access the USB storage device Through the Internet
- Safely Remove a USB storage device
- 6 Share a USB Printer
- 7 Specify Network Settings
- View WAN Settings
- Set Up a Default DMZ Server
- Change the Modem Router’s Device Name
- Change the LAN TCP/IP Settings
- Specify the IP Addresses That the Modem Router Assigns
- Disable the DHCP Server Feature in the Modem Router
- Reserve LAN IP Addresses
- Improve Network Connections With Universal Plug and Play
- Use the WPS Wizard for WiFi Connections
- Specify Basic WiFi Settings
- Change the WiFi Security Option
- Set Up a Guest Network
- Control the Wireless Radios
- Set Up a Wireless Schedule
- Specify WPS Settings
- 8 Manage Your Network
- Change the Admin Password
- Set Up Password Recovery
- Recover the admin Password
- View Modem Router Status
- View Logs of Modem Router Activity
- View Event Logs
- Run the Ping Utility
- Run the Traceroute Utility
- Monitor Internet Traffic
- View Devices Currently on the Network
- Manage the Modem Router Configuration File
- View Wireless Access Points in Your Area
- View or Change the Modem Router Wireless Channel
- Dynamic DNS
- Remote Management
- 9 Specify Internet Port Settings
- 10 Troubleshooting
- A Supplemental Information
Nighthawk AC1900 WiFi Cable Modem Router
Troubleshooting User Manual115
Troubleshoot the Cable Internet
Connection
When your modem router cannot access the Internet and your Internet LED is on, register
the cable MAC address or device MAC address of your modem router with your cable
Internet provider.
Additionally, make sure that the modem router is specified as the TCP/IP gateway for your
computer. If your computer obtains its information from the modem router by DHCP, reboot
the computer and verify the gateway address.
Cannot Log In to the Modem Router
If you are unable to log in to the modem router from a computer or mobile device on your
local network, check the following:
1. Make sure that you are connected to the modem router’s wired or WiFi network.
• For a wired Ethernet connection, make sure that the Ethernet connection is secure
and the modem router is powered on (its Power LED is lit).
• For a WiFi connection, make sure that you selected the correct network. If you cannot
find the WiFi network, make sure that the modem router is powered on (its Power
LED is lit). If the modem router is powered on, it is possible someone turned off the
SSID broadcast or turned off the wireless radios. See
Wireless Connectivity on
page 117.
2. If you are connected to the modem router network, but the web browser does not display the
login window, check the following:
• Make sure that Java, JavaScript, or ActiveX is enabled in your browser. If you are
using Internet Explorer, click the Refresh button to be sure that the Java applet is
loaded.
• Try quitting the browser and launching it again.
3. If the browser displays the login window, but you cannot access the modem router, make
sure that you are using the correct login information.
The user name is admin, and the default password is password. Both are
case-sensitive. Make sure that Caps Lock is off when you enter this information.
4. If you customized advanced home network settings such as the IP address scheme, check
the following:
• Make sure that the IP address of your computer is on the same subnet as the modem
router. If you are using the recommended addressing scheme, your computer’s
address is in the range of 192.168.0.2 to 192.168.0.254.
• If your computer’s IP address is shown as 169.254.x.x, recent versions of Windows
and Mac OS generate and assign an IP address if the computer cannot reach a