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T
ROUBLESHOOTING
Troubleshooting Chart
Symptom
LED Indicators
LAN LED is
Off
Network Connection Problems
Cannot ping the
VoIP Router
from the
attached LAN,
or the VoIP
Router cannot
ping any device
on the attached
LAN
A-2
Action
•
Verify that the VoIP Router and attached device are
powered on.
•
Be sure the cable is plugged into both the VoIP
Router and the corresponding device.
•
Verify that the proper cable type is used and that its
length does not exceed the specified limits.
•
Be sure that the network interface on the attached
device is configured for the proper communication
speed and duplex mode.
•
Check the adapter on the attached device and cable
connections for possible defects. Replace any
defective adapter or cable if necessary.
•
Verify that the IP addresses are properly configured.
For most applications, you should use the VoIP
Router's DHCP function to dynamically assign IP
addresses to hosts on the attached LAN. However, if
you manually configure IP addresses on the LAN,
verify that the same network address (network
component of the IP address) and subnet mask are
used for both the VoIP Router and any attached LAN
devices.
•
Be sure the device you want to ping (or from which
you are pinging) has been configured for TCP/IP.
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