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Netgear CM2500

Details

     

Modem Information

DOCSIS 3.1 Cable Modem

32x8 channel bonding

Highest Service Level

Go Super Fast - 1-Gig
   

Front View

Image of front view of Netgear CM2500 modem

Click to enlarge.

After the modem is successfully registered on the network, the Power, Downstream, Upstream, and Online indicators continuously indicate that the modem is online and fully operational.
     

Back View

Image of back view of Netgear CM2500 modem

Click to enlarge.

  

The Netgear CM2500 has the following ports and buttons on the back of the modem.

  • Reset - Restores the default factory settings by pressing the Reset button for at least seven seconds, the Power LED will blink white, and the modem will return to its factory settings. This button is recessed to prevent accidental resets of your modem.
  • Aggregate 1 and 2 - Use two Ethernet cables to connect these ports to a device that supports Ethernet aggregation.
  • Cable - Connect a coaxial cable line using this port.
  • DC - Connect the power adapter using this port.
     

MAC Address

Image of Netgear CM2500 modem label

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 device's manufacturer.

Troubleshooting

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

LED Light Status Problem
Power Off No power. Verify all cable connections and reset the modem.
Solid White No problem. The modem is receiving power and functioning normally.
Solid Red The modem is too warm and may overheat. Disconnect the power adapter and let the modem cool down for a few minutes. Once the modem has cooled, ensure it is placed vertically 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 modem.
Solid Amber No problem. A connection from the computer to the internet is established on one channel.
Blinking White The modem is scanning for downstream channels. Verify all cable connections and try resetting the modem if the LED indicator continues to blink.
Solid White No problem. A connection from the computer to the internet is established on two or more channels.
Upstream Off The upstream channel is inactive. Verify all cable connections and reset the modem.
Solid Amber No problem. A connection from the internet to the computer is established on one channel.
Blinking White The modem is scanning for an upstream channel. Verify all cable connections and try resetting the modem if the LED indicator continues to blink.
Solid White No problem. A connection from the internet to the computer is established on two or more channels.
Online Off The modem is offline. Verify all cable connections and reset the modem.
Solid White No problem. The modem is online and operational.
Blinking White The modem is synchronizing. Verify all cable connections and try resetting the modem if the LED indicator continues to blink.
Eth 1 and
Eth 2		 Off A device is not connected to this port.
Solid White No problem. A 1 Gbps device is powered on and connected to the port.
Solid Amber No problem. A 10 Mbps or 100 Mbps device is powered on and connected to the port.
Blinking White or Amber No problem. The port is sending or receiving traffic.

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