TECHNICAL SUPPORT
Cable Modem: SMC 8004 Troubleshooting
► Summary
Troubleshooting
Manufacture Resources
·
·
·
·
·
► Troubleshoot Modem Lights
"Ethernet" Blinking
"USB" blinking
► Troubleshooting Diagram:
Modem
Status
Problem
Solution
Light
Solid
None
N/A
Green
Power
Verify power supply connections, the power switch
Off
No Power
on the Modem itself, electrical outlet and verify the
outlet is not connected to a switch.
Solid
None
N/A
Green
Verify Ethernet / USB cable connections, the TCP/IP
Blinking
Modem is searching for
settings and the NIC. You might need to reinstall the
Orange
the downstream
NIC drivers.
Cable
Downstream frequency
Verify Ethernet / USB cable connections, the TCP/IP
Solid
found, still looking for
settings and the NIC. You might need to reinstall the
Orange
upstream
NIC drivers.
No connection between
Verify Ethernet / USB cable connections, the TCP/IP
Off
the Ethernet / USB and
settings and the NIC. You might need to reinstall the
the computer
NIC drivers.
Verify Ethernet / USB cable connections, the TCP/IP
Status
Off
No Ethernet found
settings and the NIC. You might need to reinstall the
NIC drivers.
Solid
Successfully found the computer through USB
None
Green
connection
Blinking
None
N/A
ETH
Green
Verify Ethernet / USB cable connections, the TCP/IP
Off
No USB found
settings and the NIC. You might need to reinstall the
NIC drivers.
Solid
Successfully found the computer through USB
None
Green
connection
Blinking
None
N/A
USB
Green
Verify Ethernet / USB cable connections, the TCP/IP
Off
No USB found
settings and the NIC. You might need to reinstall the
NIC drivers.
► Back View
► Mac Address Label
