Netgear Cm1000 Ultra High Speed Cable Modem Docsis 3 1 Ready User Manual

Manage and Monitor 
21  High Speed Cable Modem
6. Click the Apply button.
Your change takes effect. 

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3
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. 

Troubleshooting 23
 High Speed Cable Modem
Use LEDs to Troubleshoot
The following table provides help when you are using the LEDs for troubl\
eshooting.
Table 2.  Troubleshooting with LEDs
 
LED BehaviorAction
All LEDs are off when the cable  modem is plugged in. • 
Make sure that the power cord is properly connected to your cable 
modem and that the power supply adapter is properly connected to a 
functioning power outlet. 
•  Check that you are using the 12 VDC, 2.5A power adapter from 
NETGEAR for...

Troubleshooting 
24 High Speed Cable Modem 
Cannot Log In to the Cable Modem
If you cannot access the cable modem from computer that is connected to the cable modem 
or to a router that is connected the cable modem, check the following:
•If your computer is connected to the cable modem with an Ethernet cable, check the 
connection.
•Make sure that your computer’s IP address is on the same subnet as the cable modem. 
The IP address of your computer must be in the range of 192.168.100.2 to...

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A
A.   Technical Specifications
The following table lists the technical specifications for the cable mod\
em.
Table 3.  Technical specifications 
FeatureSpecification
Power adapter • Input: 1
10–120V, 47–60 Hz
• Output: 12 VDC, 2.5A
Physical specifications • Dimensions: 5.90 x 8.77 x 3.43 in. (149.76 x 222.68 x 87 mm)
•  W
eight: 0.84 lb (380 g)
Environmental • Operating temperature: 32° to 104°F (0° to 40°C)
•  Operating humidity: 90% maximum relative humidity
 , noncondensing
Interface • Local:...