Netgear CM500 Cable Modem WiFi Router Combo user manual

June 7, 2024
Cox

Netgear CM500 Cable Modem WiFi Router Combo

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Modem Information

DOCSIS 3.0 Cable Modem

16×4 channel bonding

To achieve Gigablast or Ultimate Classic speeds, a DOCSIS 3.1 modem is required

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Highest Service Level

Preferred 150

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Front View

Click to enlarge.

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  • The Netgear CM500 is a DOCSIS 3.0 device.
  • The highest service level is based on wired connectivity speeds.
  • After the cable modem is successfully registered on the network, the Power , Upstream , Downstream , and Internet indicators illuminate continuously to indicate that the cable modem is online and fully operational.

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Back View

Click to enlarge.

| | The Netgear CM500 has the following ports available on the back of the modem.

  • Power – Connect the supplied power cord to this port.

  • ETHERNET – Connects to the Ethernet cable. Note : This is a LAN Gigabit Ethernet port.

  • 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.
    login/Reset instructions

  • Cable / Internet – Connect your coaxial cable line to this port.

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

Modem Light Status Problem

Power

| Off| No power – Verify all cable connections and try resetting the modem.
Solid Green| None
Red| The cable modem is too warm and might overheat. Fix:

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

Downstream

| Off| Downstream channel inactive – Verify all cable connections and try resetting the modem.
Solid Amber| None – connection from the computer to the Internet established on one channel.
Blinking Amber| Scanning for downstream channel – Verify all cable connections and try resetting the modem.
Solid Green| None – connection from the computer to the Internet established on more than one channels.
Upstream

| Off| Upstream channel inactive – Verify all cable connections and try resetting the modem.
Blinking Amber| Scanning for upstream channel – Verify all cable connections and try resetting the modem.
Solid Amber| None – connection from the Internet to the computer established on one channel.
Solid Green| None – connection from the Internet to the computer established on more than one channels.
Internet

| Off| Modem Offline – Verify all cable connections and try resetting the modem.
Solid Green| None – Modem operational
Blinking Green| None – Modem receiving DHCP information
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 at 1000 Mbps.
Solid Amber| None – A device is connected to the Ethernet port at 10/100 Mbps.
Blinking Green or Amber| None – Ethernet port is processing traffic

Manufacturer Resources

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