Netgear CM2050V User Manual - Page 27

Nighthawk CM2050V 2.5 Gbps Ultra-High Speed Cable Telephony Modem Table 2. Troubleshooting your cable modem's LEDs LED Behavior Action All LEDs are off when the cable modem is plugged in. • Make sure that the power cord is securely connected to your cable modem and that the power supply adapter is securely connected to a functioning power outlet. • Make sure that you are using the 12 VDC, 2.5A power adapter from NETGEAR for this product. • If the error persists, a hardware problem occurred. Contact Technical Support. All LEDs stay on. • Reset the configuration of the cable modem to its factory defaults. • If the error persists, a hardware problem occurred. Contact Technical Support. The Ethernet LED is off for a port with an Ethernet connection. • 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 Online LED is off and the cable modem is connected • Make sure that the coaxial cable connections are to the cable wall jack. secure at the cable modem and at the wall jack. • Make sure that your Internet service provider provisioned your cable Internet service. Your ISP can verify that the signal quality is good enough for cable modem service. • Remove any excessive splitters that you installed on your cable line. The Power LED lights red. The cable modem is too warm and might overheat. Do the following: 1. Disconnect the power adapter. 2. Wait a few 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. Troubleshooting 27 User Manual