Netgear C7800 Cable Modem WiFi Router Combo user manual

: June 7, 2024
: Cox

Table of Contents

Details
Modem Information
Highest Service Level
Front View
Back View
MAC Address
Troubleshooting
Manufacturer Resources
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Details

| |
---|---|---

Modem Information

DOCSIS 3.1 Dual Band WiFi Modem

32×8 channel bonding

|

Highest Service Level

Gigablast

|
---|---

Front View

Click to enlarge.

| | After the cable modem successfully registers on the network, the Power , Upstream , Downstream , and Internet indicators illuminate continuously to indicate that the modem is online and fully operational.
| |

Back View

Click to enlarge.

| | The Netgear C7800 has the following ports available on the back of the modem.

Power – Connect the supplied power cord to this port.
Ethernet – Four Gigabit Ethernet LAN ports. Only one port is active at a time.
Reset – Use this button in the unlikely event that you want to restore the default factory settings. This button is recessed to prevent accidental resets of your modem.
Cable / coaxial – Connect your coaxial cable line to this port.

| |

MAC Address

Click to enlarge.

| | 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 modem lights indicate the current status of your cable modem. To troubleshoot any connection problems, use the table below.

Modem LED Light	Status	Problem
Power	Off	No power. Verify all cable connections and try resetting the

modem.
Green| None.
Red| The cable modem is too warm and might overheat:

Disconnect the power adapter.
Wait a couple of minutes to let the cable modem cool down.
Make sure that the cable modem is placed in a vertical position.
Make sure that the cable modem is placed in a location with good ventilation.
Reconnect the power adapter.

Downstream
| Blinking Green| Scanning for downstream channel. Verify all cable connections and try resetting the modem.
Solid Amber| None. Connection established on one channel.
Solid Green| None. Operating on more than one channel.
Off| Downstream channel inactive. Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact
Upstream
| Off| Upstream channel inactive. Verify all cable connections and try resetting the modem.
Blinking Green| Scanning for upstream channel. Verify all cable connections and try resetting the modem.
Solid Amber| None. Connection established on one channel.
Solid Green| None. Operating on more than one channel.
Internet
| Off| Modem offline. Verify all cable connections and try resetting the modem.
Blinking Green| None. Scanning for configuration parameters. Verify all cable connections and try resetting the modem.
Solid Green| None. Operational.
2.4 GHz
| Off| 2.4 GHz radio off.
Solid Green| None. 2.4 GHz radio on.
5 GHz
| Off| 5 GHz radio off.
Solid Green| None. 5 GHz radio on.
Ethernet| Off| A device is not connected to the Ethernet port on the back. Connect a device to the Ethernet port on the back.
Solid Green| None. A device is connected to the Ethernet port.
WiFi On/Off
| Off| WiFi disabled.
On| None. WiFi enabled.
WPS
| Blinking Green| None. This button lets you use WPS to join the WiFi network without typing the WiFi password. The WPS LED blinks during this process and then lights solid.