NETGEAR NIGHTHAWK CM2000 Bedienungsanleitung
User Manual
Nighthawk® 2.5Gbps Multi-Gig Speed
Cable Modem
Model CM2000
NETGEAR, Inc.
350 E. Plumeria DriveMay 2020
San Jose, CA 95134, USA202-12065-01
Support
Thank you for purchasing this NETGEAR product.
You can visit https://www.netgear.com/support/ to register your product, get help,
access the latest downloads and user manuals, and join our community. We recommend
that you use only official NETGEAR support resources.
Contact your Internet service provider for technical support.
Trademarks
©NETGEAR, Inc. NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc.
Any non-NETGEAR trademarks are used for reference purposes only.
Compliance and Conformity
For regulatory compliance information, visit https://www.netgear.com/about/regulatory/.
See the regulatory compliance document before connecting the power supply.
Note to CATV system Installer- This reminder is provided to call the CATV systems
installer's attention to Section 820-93 of the National Electrical Code which provide
guidelines for proper grounding and in particular, specify that Coaxial cable shield shall
connected to the grounding system of the building, as close to the point of cable entry
as practical
2
Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem
Contents
Chapter 1 Hardware Setup
Front Panel and LEDs...........................................................................5
Rear Panel..............................................................................................6
Label.......................................................................................................8
System Requirements...........................................................................8
Install and Activate Your Cable Modem............................................9
Connect Your Cable Modem to a Computer...............................9
Activate Your Internet Service......................................................10
Perform a Speed Test....................................................................11
Connect Your Cable Modem to a Router After Installation and
Activation........................................................................................11
Chapter 2 Manage Your Network
Log in to the cable modem...............................................................14
Change the admin password............................................................14
View cable modem initialization.......................................................15
View cable modem status..................................................................16
View and clear event logs..................................................................16
Specify the cable connection starting frequency...........................17
Reboot the cable modem..................................................................17
Reset the cable modem to factory default settings........................18
Use the reset button on the back panel..........................................19
Use the factory reset software button..............................................19
Chapter 3 Troubleshooting
Use LEDs to Troubleshoot.................................................................21
Cannot log in to the cable modem..................................................22
Troubleshoot the cable internet connection..................................23
Chapter 4 Supplemental Information
Factory Settings..................................................................................25
Technical Specifications.....................................................................25
3
Front Panel and LEDs
The cable modem provides status LEDs on the front.
Figure 1. Front panel
You can use the LEDs to verify status and connections. The following table lists and
describes each LED on the cable modem.
User Manual5Hardware Setup
Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem
Table 1. LED descriptions
DescriptionIconLED
•Solid white. Power is supplied to the cable modem.
•Off. No power is supplied to the cable modem.
•Solid red. The cable modem is too warm and might overheat. For
more information about this condition, see Use LEDs to Troubleshoot
on page 21.
Power
•Solid amber. One downstream channel is locked.
•Solid white. Two or more downstream channels are locked.
•Blinking white. The cable modem is scanning for a downstream
channel.
•Off. No downstream channel is locked.
Downstream
•Solid amber. One upstream channel is locked.
•Solid white. Two or more upstream channels are locked.
•Blinking white. The cable modem is scanning for an upstream
channel.
•Off. No upstream channel is locked.
Upstream
•Solid white. The cable modem is online.
•Blinking white. The cable modem is synchronizing with the cable
provider’s cable modem termination system (CMTS).
•Off. The cable modem is offline.
Online
•Solid white. A 2.5 Gbps connection is established.
•Blinking blue. The port is sending or receiving traffic at 2.5 Gbps.
•Solid white. A 1 Gbps connection is established.
•Blinking white. The port is sending or receiving traffic at 1 Gbps.
•Solid amber. A 100 Mbps connection is established.
•Blinking amber. The port is sending or receiving traffic at 100 Mbps.
Multi Gig Port
Rear Panel
The connections and button on the rear panel are shown in the following figure.
User Manual6Hardware Setup
Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem
Figure 2. Rear panel
Viewed from top to bottom, the back panel contains the following components:
•Reset button. Pressing the Reset button resets the cable modem. If the Reset button
is pressed for at least seven seconds, the Power LED blinks white and the cable
modem returns to its factory settings.
•Ethernet port. For installation and activation, connect a computer to the Ethernet
port. After you install your cable modem and activate your Internet service, you can
disconnect your computer and connect a router to the Ethernet port.
User Manual7Hardware Setup
Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem
•Coaxial cable port. Connect the cable port to a cable wall outlet.
•DC power connector. Connect the power adapter that came in the product package
to the DC power connector.
Label
The cable modem label shows the login information, MAC address, and serial number.
Figure 3. Cable modem label
System Requirements
You need the following to install your cable modem:
•Compatible operating system:
- Windows 10
- Windows 8
- Windows 7
- Windows Vista
- Windows XP
- Windows 2000
- Mac OS
- Other operating systems running a TCP/IP network
•Compatible web browser:
-Microsoft Internet Explorer 5.0 or later
-Firefox 2.0 or later
User Manual8Hardware Setup
Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem
-Safari 1.4 or later
- Google Chrome 11.0 or later
•Cable broadband Internet service
Install and Activate Your Cable Modem
The cable modem provides a connection between your cable Internet provider’s network
and your computer, router, or WiFi router.
Connect Your Cable Modem to a Computer
After you install the cable modem and activate your Internet service, you can disconnect
the computer and connect a router to the cable modem.
To connect your cable modem directly to a computer:
1. Turn off and disconnect existing modems and routers.
If you are replacing a modem that is currently connected in your home, unplug the
modem and plug the new cable modem into the same outlet.
2. Connect a coaxial cable.
Use a coaxial cable to connect the cable port on the cable modem to a cable wall
outlet. Make sure that the cable is tightly connected.
3. Connect the power adapter to the cable modem and plug the power adapter into
an electrical outlet.
When the startup is complete, the Power LED lights white.
4. Wait for the cable modem to come online.
The cable modem comes online when the Internet LED stops blinking and lights
solid white.
This process might take up to 10 minutes.
5. Connect a computer to the cable modem.
Use the Ethernet cable that is provided in the package to connect a computer to the
Ethernet port on the cable modem.
6. Reboot the computer.
7. Activate your Internet service.
For information about how to activate your Internet service, see Activate Your Internet
Service on page 10.
User Manual9Hardware Setup
Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem
Note: After you install and activate the cable modem, you can disconnect the
computer and connect a router to the cable modem. For more information, see
Connect Your Cable Modem to a Router After Installation and Activation on page
11.
Activate Your Internet Service
Before you activate your Internet service, gather the following information:
•Your cable Internet provider account information
•Cable modem model number, which is CM2000
•Cable modem serial number, which is on the cable modem label
•Cable modem MAC address, which is on the cable modem label
Figure 4. Example of a cable modem label
The following is contact information for cable Internet providers that support your cable
modem.
Table 2. Cable Internet provider contact information
Contact InformationCable
Internet
Provider
https://cox.com/activate
1-888-556-1193
Cox
https://support.mediacomcable.com/
1-855-Mediacom (1-855-633-4226)
Mediacom
https://install.optimum.com/JointInstall/
1-877-810-6750
Optimum
https://support.sparklight.com/
1-877-692-2253
Sparklight
User Manual10Hardware Setup
Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem
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