NETGEAR CM1100 User Manual

Use LEDs to Troubleshoot
The following table provides help when you are using the LEDs for troubleshooting.
Table 3.Troubleshooting with LEDs
ActionLED Behavior
• Make sure that the power adapter is securely
connected to your cable modem and a functioning
power outlet.
• Check that you are using the 12 VDC, 2.5 A power
adapter from NETGEAR for this product.
• If the error persists, a hardware problem occurred.
Contact technical support.
All LEDs are off when the cable modem is plugged in.
• Reset the configuration of the cable modem to its
factory defaults.
• If the error persists, a hardware problem occurred.
Contact technical support
All LEDs stay on.
• Make sure that the Ethernet cable connections are
secure at the cable modem and at the computer,
router, or WiFi router.
• Make sure that power is turned on to the connected
hub or computer.
• Be sure that you are using the correct cable.
The Ethernet LED is off for a port with an Ethernet
connection.
Troubleshooting
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Nighthawk Multi-Gig Speed Cable Modem

NETGEAR CM1100 Specifications

General

DOCSIS	3.1
Channel Bonding	32x8
Backward Compatibility	DOCSIS 3.0
Product Type	Cable Modem
IPv6 Support	Yes
Max Download Speed	2 Gbps
Max Upload Speed	1 Gbps
Compatible ISPs	Xfinity, Cox, Spectrum
Ethernet Ports	2 Gigabit Ethernet ports