Troubleshooting
CSX400 and CSX400-DC User’s Guide 209
Troubleshooting the WAN

Link (LNK) LED is OFF

The WAN interface is not configured for operation.
•Use QuickSET or Local Management to make sure that the WAN interface is configured
correctly.

Link (LNK) LED is RED

The WAN interface is configured, but there is no signal indicating that a valid connection is present
on the WAN interface.
•Check that the CSX400 and the device at the other end of the segment are powered up.
•Use QuickSET or Local Management to make sure that both WAN interfaces, local and remote,
are configured correctly.
•Check to ensure that the correct cable is being used.
•Check to ensure that the cable has continuity and is fully installed.
•Check with the WAN Service Provider to ensure that the circuit has been configured by them
and is active.

Link (LNK) LED is AMBER

The port is in Standby mode.
•Check with the Network Administrator to see if management placed the port in Standby mode.
•Ensure that the protocol that you want to run has been properly selected at both ends and the
time slots have been allocated if applicable.

Status 1 (STS1) LED is OFF

WPIM-T1, WPIM-E1, WPIM-DI, or WPIM-DDS Installed in CSX400
The port is operating normally. If it is not, and this LED is OFF the port may be disabled.
•Use QuickSET or Local Management to make sure that the WAN interface on the Local device
is configured correctly.