What do the lights on the modem mean?

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Lights on the Modem

Normally ACD will ask you what lights are on your modem as one of the first troubleshooting steps. Listed below is a breakdown of the lights and what they mean, so you can have a better understanding of the troubleshooting process.

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ACD's modems have four lights on them. These lights can help us troubleshoot to determine what problem you are experiencing.

  • Power- The power light should always be on, indicating the device is plugged in and receiving power.
  • LAN- The LAN light should be on when a computer or router is physically connected to the modem via ethernet cable. The light may blink indicating activity.
  • Status or DSL- This light should be solid, if you are connected to the internet. The light will blink as the modem "handshakes" or attempts to establish a connection with ACD's CO equipment.
If the Status or DSL light is off and does not blink, a signal is not getting to the modem. Try a new phone cord or wall jack, if possible.
  • Activity or Internet- This light will only be active after a connection to the internet is established(The Status or DSL light will be solid). The light will blink to indicate data is moving.
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