Troubleshooting

The lights indicate the current status of your modem. To troubleshoot any connection problems, use the table below.
Modem Light | Status | Problem |
POWER | Solid Green | None |
Off | No power - Verify power supply connections and electrical outlet, also make sure the outlet is not connected to a switch. |
DS (Downstream) | Solid Green | None |
Blinking Green | Modem establishing a connection from the Internet to the computer - Verify all cable connections and try resetting the modem. |
US (Upstream) | Solid Green | None |
Blinking Green | Modem trying to connect to service - looking for upstream - Verify all cable connections and try resetting the modem. |
Off | Modem establishing a connection from the computer to the Internet - Verify all cable connections and try resetting the modem. |
ONLINE | Solid Green | None |
Off | No connection - Verify all cable connections and try resetting the modem. |
LINK | Solid Green | None - single device connected to either the Ethernet or USB port and no data is being sent to or from the modem |
Blinking Green | None - single device is connected to either the Ethernet or USB port and data is being transferred between the computer and the cable modem |
Amber | None - bonded connection being used |
Off | No devices connected - Verify all cable connections and try resetting the modem. |
TEL 1 TEL 2 | Solid Green | None - service enabled |
Blinking Green | None - Line 1 or Line 2 in use |
BATTERY | Solid Green | None - battery charged |
Blinking Green | Battery charge is low - Make sure the power cord is connected to the unit and an active power source. |
Off | No battery in the unit |
Manufacturer Resources
For more detailed technical information on the DPQ3212, refer to the Cisco DPQ3212 eMTA Modem User Guide (PDF).