USB ETHERNET CABLE STATUS POWER Introduction Broadband Cable Modem CM212 Broadband Cable Modem Thank you for purchasing a NETGEAR CM212 Cable Modem. With this modem you can have secure high-speed Internet access and, if you have an Cable/DSL Gateway Router, share the modem with several computers. This installation guide shows you how to connect the modem and configure it and your computers for secure Internet access.
USB STATUS ETHERNET POWER CABLE What’s in the Box Broadband Cable Modem CM212 Broadband Cable Modem Model CM212 GearBox CD, installation guide, support information card & warranty/registration card Vertical Stand Category 5 Ethernet cable USB Cable Power adapter When you open the box, verify that you received everything.
1 Prepare for Installation Before installing the CM212 cable modem, you should have active (two-way) cable service and an Internet account with your cable provider. Note: If you’re connecting a single computer to the modem, you may use either the modem’s USB or Ethernet port. If you’re connecting more than one computer, you must use the Ethernet port combined with a Router.
2 Install the Cable Modem After unpacking the box, you can install the cable modem. You do not have to power down any equipment to do this, but if you need to move your computer (perhaps to get to a port in the back), you may want to shut down the computer before moving it. USB Connection Use the USB cable if you’re connecting the modem to one Windows-based computer and you have an available USB port on your computer. Connect the CATV cable from the wall outlet to the Cable port on the modem. 2.
Ethernet Connection Use the Ethernet cable if you’re connecting the modem to one or more computers and you have an available RJ-45 port on your computer. Connect the CATV cable from the wall outlet to the Cable port on the modem. 2. Connect the Ethernet cable to the RJ-45 port on the computer and to the Ethernet port on the modem. 3. Connect the power adapter into the back of the modem and then plug the adapter into a power source (such as a wall socket or power strip).
3 Configure the Computer to Work with the Modem Next, you configure the computer to interact with the modem. USB Connection Note: The modem must be connected to the Coaxial Cable and established link (Cable and Status Lights are solid Green) before your PC will recognize the modem. For the USB connection, you need to install USB drivers on your Windows computer. 1. If the computer was turned off, turn it on now. 2. Insert the CM212 GearBox CD in the computer’s CD-ROM drive. 3.
4. Select “Search for suitable drivers for my device” and click Next 5. Select CD-ROM Drives and click Next.
6. Click Next when the following dialog box appears. 7. Click Finish.
8. When the following dialog box appears, click Yes. 9. Restart the computer. 10. Proceed to Chapter 4 – Test the Connection on page 11. Ethernet Connection For the Ethernet connection, configure the TCP/IP settings on the computer and then restart the computer. How you do this depends on your computer. Windows Operating System Normally, you leave the TCP/IP setup parameters at their factory default settings unless you have a specific reason to change them.
Windows 2000 or XP Windows 98 or Me 1. Right-click My Network Place and choose Properties. 2. Double-click Local Area Network Connection and click Properties. 3. Select Internet Protocol (TCP/IP) and click Properties. 1. Choose Settings>Control Panel from the Start menu. 2. Double-click the Network icon. 3. Click the Configuration tab. 4. In the list of installed network components, select the TCP/IP entry for the computer’s Ethernet adapter or NIC. 4.
Macintosh Operating System Mac OS® 8.6 or 9.x 1. Choose Control Panels > TCP/IP from the Apple () menu. 2. Choose User Mode from the Edit menu. 3. Click Advanced and click OK. 4. If not already selected, select Ethernet in the Connect via list. 5. Select Using DHCP Server in the Configure list. 6. Clear the Use 802.3 check box if it’s selected. 7. Click Options. 8. Select Active and click OK. 9. Click the Close box. 10. Click Save. 11. Restart the computer. Mac OS X 1.
4 Test the Connection To test your setup, you view a Web page online. 1. Start your Internet browser on the computer 2. Go to NETGEAR’s Web site (www.NETGEAR.com). Note: If NETGEAR’S Web site doesn’t appear, go to Troubleshooting on page 13. 3. 12 Quit your Internet browser.
5 Sharing Your Cable Internet with Multiple Computers POWER CABLE USB ETHERNET 12VDC 1.0A-1.25A RESET Combining a Cable/DSL router with your Cable Modem enables you to connect multiple computers so they can share access. CM212 Broadband Cable Modem Cable/DSL Web Safe Router RP614 Refer to your Router documentation for complete installation instructions.
Troubleshooting No lights are lit on the modem The modem has no power. • Make sure the power adapter is properly connected to the modem. • Make sure the power adapter is properly connected to a functioning power outlet. If it’s in a power strip, make sure the power strip is turned on. • Make sure you’re using the correct power adapter. The Cable light doesn’t light up There’s a hardware connection problem. • Make sure the CATV cable connector is securely plugged in at the modem.
For Windows, the Network Properties should have Obtain an IP address automatically selected (see page 9). For Macintosh computers, the TCP/IP (or Network) control panel should be set to Using DHCP Server (see page 10). Resetting TCP/IP Properties (Windows) If you’re on a Windows computer and are still having problems, you may try the following procedure before contacting technical support. Windows 98/Me 1. Click the Start button and then click Run. 2. Type winipcfg and then click OK. 3.
Glossary of Terms Category 5 (CAT5): A twisted pair cable that meets specified requirements for high-speed networking. Community Antenna Television (CATV): Broadband cable TV and Internet access service. DOCSIS: Data Over Cable Service Interface Specification. A specification that defines interface requirements for cable modems. IP Address: A 4-part number uniquely defining each host on the Internet. Usually written in dotteddecimal notation with separating periods (for example, 134.177.244.57).
Voluntary Control Council for Interference (VCCI) Statement This equipment is in the second category (information equipment to be used in residential areas) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Office Machines that are aimed at preventing radio interference in residential areas.
Technical Support PLEASE REFER TO THE SUPPORT INFORMATION CARD THAT SHIPPED WITH YOUR PRODUCT. By registering your product at www.NETGEAR.com/register, we can provide you with faster expert technical support and timely notices of product and software upgrades. NETGEAR, INC. Support Information Phone: 1-888-NETGEAR (For US & Canada only) See Support Information card for other countries. E-mail: support@NETGEAR.com www.NETGEAR.com ©2002 by NETGEAR, Inc. All rights reserved.
