====== Cable Modem Status and Reset Procedure ======

===== Status Lights =====

:!: Normally, you will see lights number 1-4 all lit up and if they are not, the cable modem knows the circuit is down.  Most cable modems have this same series of four lights (plus others).

:!: The middle two lights (2 and 3) may be blue or green.

:!: Light number 5 (on this model) will be on/blinking with activity when the router is connected and turned on (Ethernet link light).

Refer to this image as a common model representative of most cable modems:

{{ :quick_guide:motorola_sb6121_lights.gif?482 |Cable Modem Status Lights}}

===== Troubleshooting and Reset Procedure =====

If you lose (Internet) connectivity:

  - Look at all your communications gear and make sure it is all turned on (check for power):
    - Cable modem
    - Router
    - Ethernet switch
  - If power is on, focus on the cable modem first:
    - Note the status of the lights (write it down if necessary)
    - Unplug the power from the cable modem for 15 seconds
    - Plug the cable modem power back in and watch the progression of the lights
      - Power light (#1) will come on and the second light (#2) will blink
      - Second light (#2) will go solid and #3 will blink
      - Third light (#3) will go solid and #4 will blink
      - The fourth light will finally go solid
  - Check that the circuit is back up (Internet access)
    - Please note the connectivity status
  - If connectivity is still not restored:
    - Unplug the power to your router, then plug it back in
    - Wait for a minute or so, then check connectivity again
  - If connectivity is not restored after rebooting your router:
    - Reboot your workstation PC
    - Check connectivity again

These procedures will restore Internet access most of the time, but they doesn't actually fix anything.

If you have a chronic issue, be sure to report the outage(s) to your service provider.