Netgear CBR750 Nighthawk Cable Modem user manual
- June 7, 2024
- Cox
Table of Contents
Netgear CBR750 Nighthawk Cable Modem
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Modem Information
DOCSIS 3.1 802.11-AX Dual Band WiFi Modem
32×8 channel bonding
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Highest Service Level
Gigablast
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Front View
| | After the gateway is successfully registered on the network, the Power , Downstream , Upstream , and Online indicators illuminate white continuously to indicate that the gateway is online and fully operational.| | |
Back View
| | The Netgear CBR750 has the following ports and buttons on the back of the gateway.
- Sync – Used for WPS connections.
- Ethernet – Connect Gigabit Ethernet cables using these four ports.
- Cable – Connect a coaxial cable line using this port.
- Reset – Restores the default factory settings. This button is recessed to prevent accidental resets of your gateway.
- DC – Connect the power cable using this port.
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MAC Address
| | MAC addresses are written as 12 digits containing both letters and numbers (0-9, A-F). A MAC address is unique. The first six characters of the MAC address are unique to the manufacturer of the device.
Troubleshooting
The lights indicate the current status of the gateway. To troubleshoot any connection problems, use the table below.
| LED Light | Status | Problem |
|---|---|---|
| Power | Off | No power. Verify all cable connections and reset the |
gateway.
Solid White| None. The gateway is receiving power and functioning normally.
Solid Red| The gateway is too warm and may overheat. Disconnect the power
adapter and allow the gateway to cool down for a few minutes. Once the gateway
has cooled, ensure it is placed in a vertical position and in a location with
good ventilation before reconnecting the adapter.
Downstream| Off| The downstream channel is inactive. Verify all cable
connections and reset the gateway.
Solid Amber| None. A connection from the computer to the internet is
established on one channel.
Blinking White| The gateway is scanning for downstream channel. Verify all
cable connections and try resetting the gateway if the LED indicator continues
to blink.
Solid White| None. A connection from the computer to the internet is
established on more than one channel.
Upstream| Off| The upstream channel is inactive. Verify all cable
connections and reset the gateway.
Solid Amber| None. A connection from the internet to the computer is
established on one channel.
Blinking White| The gateway is scanning for an upstream channel. Verify all
cable connections and try resetting the gateway if the LED indicator continues
to blink.
Solid White| None. A connection from the internet to the computer is
established on more than one channel.
Online| Off| The gateway is offline. Verify all cable connections and
reset the gateway.
Solid White| None. The gateway is online and operational.
Blinking White| The gateway is synchronizing. Verify all cable connections and
try resetting the modem if the LED indicator continues to blink.
Manufacturer Resources
- NetgearCBR750_DataSheet [PDF]
- NetgearCBR750_QuickStartGuide [PDF]
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