Related Manuals for NETGEAR CM400
Summary of Contents for NETGEAR CM400
- Page 1 CM400 High Speed Cable Modem Us e r Manual August 2014 202-11412-01 350 East Plumeria Drive San Jose, CA 95134...
- Page 2 See the regulatory compliance document before connecting the power supply. Trademarks NETGEAR, the NETGEAR logo, and Connect with Innovation are trademarks and/or registered trademarks of NETGEAR, Inc. and/or its subsidiaries in the United States and/or other countries. Information is subject to change without notice.
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Page 3: Table Of Contents
Contents Chapter 1 Hardware and Internet Setup Unpack Your Cable Modem ..........5 Front Panel . -
Page 4: Chapter 1 Hardware And Internet Setup
Hardware and Internet Setup The NETGEAR CM400 High Speed Cable Modem provides a connection to high-speed cable Internet with speeds up to 340 Mbps. The cable modem is certified by all major cable Internet providers. A Gigabit Ethernet port provides fast access and downloads. The cable modem supports IPv4 and IPv6 address assignment by cable Internet providers. -
Page 5: Unpack Your Cable Modem
CM400 High Speed Cable Modem Unpack Your Cable Modem Your package contains the following items. Attachable feet Cable modem Power adapter Ethernet cable Figure 1. Package contents Front Panel The cable modem provides status LEDs on the front. Ethernet LED... -
Page 6: Back Panel
CM400 High Speed Cable Modem You can use the LEDs to verify status and connections. The following table lists and describes each LED on the front panel of the cable modem. Table 1. LED descriptions Description Power • Green. Power is supplied to the cable modem. -
Page 7: Product Label
CM400 High Speed Cable Modem Product Label The product label on the bottom of the cable modem displays the serial number and MAC address of the cable modem and login information, including the default IP address, default user name, and default password. -
Page 8: Cable Your Cable Modem
CM400 High Speed Cable Modem Cable Your Cable Modem The cable modem provides a connection between your cable Internet provider’s network and your computer, router, or WiFi router. Ethernet cable Coaxial cable to cable outlet Computer, router, or WiFi router Cable modem Figure 6. -
Page 9: Contact Your Cable Internet Provider And Set Up Internet Service
CM400 High Speed Cable Modem Turn on the computer, router, or WiFi router. Wait for the cable modem to come online. It takes at least 15 minutes for the cable modem to come online on the network. During this time, the Downstream LED and Upstream LED might blink. - Page 10 CM400 High Speed Cable Modem Cable Internet Provider Contact Information Charter 1-888-438-2427 install.charter.com Comcast 1-800-COMCAST (1-800-266-2278) comcast.com/activate/ 1-877-891-2899 cox.com/residential/home.cox Optimum play.optimum.net optimum.net/support/phone-list Note: Optimum is a brand name of Cablevision. Time Warner Cable 1-800-892-2253 timewarnercable.com Note: The contact information listed might change. You can also find the contact number in your monthly Internet service billing statement.
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Page 11: Chapter 2 Manage And Monitor
Manage and Monitor After you set up the cable modem, you do not need to log in to the cable modem for normal operation. However, you can log in to the cable modem to change some very limited settings and monitor the cable modem. -
Page 12: Log In To The Cable Modem
CM400 High Speed Cable Modem Log In to the Cable Modem After you set up the cable modem, you do not need to log in to the cable modem for normal operation. To log in to the cable modem, you must use a web browser such as Microsoft Internet Explorer 5.0 or later, Firefox Mozilla 2.0 or later, Safari 1.4 or later, or Google Chrome 11.0 or... -
Page 13: View Cable Modem Initialization
CM400 High Speed Cable Modem In the Starting Frequency field, type a number. Click the Apply button. Your change takes effect. View Cable Modem Initialization You can track the initialization procedure of the cable modem and get details about the downstream and upstream cable channel. -
Page 14: View Cable Modem Status
CM400 High Speed Cable Modem The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home screen displays. Select Cable Connection. The Cable Connection screen displays. The Startup Procedure section displays the initialization progress. -
Page 15: View And Clear Event Logs
CM400 High Speed Cable Modem The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home screen displays. Select ADVANCED. The Cable Information pane displays. The Cable Information pane displays the following: •... -
Page 16: Change The Admin Password
CM400 High Speed Cable Modem Select ADVANCED > Administration > Event Log. The Event Log screen displays. The Event Log screen shows the following information: • Time. The time the event log entry was recorded. • Priority. The severity for the event log entry. -
Page 17: Reboot The Cable Modem
CM400 High Speed Cable Modem Type the old password. Type the new password in the Set Password field. Type the new password in the Repeat New Password field. Click the Apply button. Your change takes effect. Reboot the Cable Modem Rebooting the cable modem disconnects all computers from the cable modem’s local area... -
Page 18: Reset The Cable Modem To Factory Default Settings
CM400 High Speed Cable Modem In the Cable Information pane, click the Reboot button. A confirmation message displays. Click the OK button. The cable modem reboots. Reset the Cable Modem to Factory Default Settings To reset the cable modem to factory default settings, you can use either the Reset button on the back panel of the cable modem or the Factory Reset software button. -
Page 19: Use The Factory Reset Software Button
CM400 High Speed Cable Modem Release the Reset button. The configuration is reset to factory default settings. When the reset is complete, the cable modem reboots. This process takes about one minute. WARNING: To avoid the risk of corrupting the firmware, do not interrupt the reset. - Page 20 CM400 High Speed Cable Modem Click the OK button. The configuration is reset to factory default settings. When the reset is complete, the cable modem reboots. This process takes about one minute. WARNING: To avoid the risk of corrupting the firmware, do not interrupt the reset.
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Page 21: Chapter 3 Troubleshooting
This chapter provides information about troubleshooting your cable modem. The chapter includes the following sections: • Use LEDs to Troubleshoot • Cannot Log In to the Cable Modem • Troubleshoot the Cable Internet Connection Note: NETGEAR provides helpful articles and documentation at support.netgear.com. -
Page 22: Use Leds To Troubleshoot
Check that you are using the 12 VDC power adapter from NETGEAR for this product. If the error persists, a hardware problem occurred. Contact technical support. -
Page 23: Troubleshoot The Cable Internet Connection
CM400 High Speed Cable Modem If the cable modem does not save changes you made, do the following: • When entering configuration settings, be sure to click the Apply button before moving to another screen, or your changes are lost. -
Page 24: Appendix A Technical Specifications
Technical Specifications The following table lists the technical specifications for the cable modem. Table 3. Technical specifications Feature Specification Power adapter • Input: 110–120V, 47–60 Hz • Output: 12 VDC, 1A Physical specifications • Dimensions: 5.8 x 3.8 x 1.8 in. (147 x 96 x 30 mm) •...