Troubleshooting
The lights indicate the current status of your modem. To troubleshoot any connection problems, use the table below.
Light | Status | Problem |
POWER | On | None |
Blinking | Not connected to the Internet - Turn off all network devices, including the modem and computers. Then turn on each device in the following order.
- Modem
- Computer
- Check the connections. Computers connected by Ethernet must be connected to one of the ports numbered 1 through 4 on the back of the modem.
|
Off | No power - Verify power supply connections and electrical outlet. Also, make sure the outlet is not connected to a switch. |
DS | On | None |
Amber | None - narrowband operation |
Green | None - bonded channel operation |
US | On | None |
Amber | None - narrowband operation |
Green | None - bonded channel operation |
ONLINE | On | None - modem registered on the network and operational |
ETHERNET 1 - 4 | On | None - modem successfully connected to a device through that port |
Blinking | None - network activity over that port |
Off | No devices are connected - Verify Ethernet cable connections, the TCP/IP settings, and the NIC. NIC drivers may need to be reinstalled. |
USB | On | None - connection made through the USB port |
Blinking | None - network activity over the USB port |
Off | No devices are connected - Verify all cable connections and try resetting the modem. |
WIRELESS LINK | On | None - wireless access point enabled |
Blinking | None - modem actively sending or receiving data over the network |
Off | No wireless access points are disabled by the user |
WIRELESS SETUP (WPS) | Off | None - wireless setup not active |
Blinking | None - wireless setup active to add new wireless clients on the wireless network |
Manufacturer Resources
For more detailed technical information on the DPC3825, use the resources below from Cisco.