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This section describes common problems you may encounter and possible solutions
to them. The ADSL Modem Multiservices PSTN Voice can be easily monitored
through panel indicators to identify problems.
Problem Solution
LED Indicators
POWER LED is Off Check connections between the ADSL Modem Multiservices
PSTN Voice, the external power supply, and the wall outlet.
If the power indicator does not turn on when the power
cord is plugged in, you may have a problem with the power
outlet, power cord, or external power supply. However, if
the unit powers off after running for a while, check for loose
power connections, power losses, or surges at the power
outlet. If you still cannot isolate the problem, then the
external power supply may be defective. In this case, contact
Technical Support for assistance.
LAN LED is Off Verify that the ADSL Modem Multiservices PSTN Voice and
attached device are powered on.
Be sure the cable is plugged into both the ADSL Modem
Multiservices PSTN Voice 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.
Network Connection Problems
Cannot ping the Verify that the IP addresses are properly configured.
ADSL Modem For most applications, you should use the ADSL Modem
Multiservices PSTN Multiservices PSTN Voice’s DHCP function to dynamically
Voice from the assign IP addresses to hosts on the attached LAN. However,
attached LAN, or it if you manually configure IP addresses on the LAN, verify
cannot ping any device that the same network address (network component of the
on the attached LAN IP address) and subnet mask are used for both the ADSL
Modem Multiservices PSTN Voice 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.
Management Problems
Cannot connect Be sure to have configured the ADSL Modem Multiservices
using the Web browser PSTN Voice with a valid IP address, subnet mask, and default
gateway.
Check that you have a valid network connection to the
ADSL Modem Multiservices PSTN Voice and that the port
you are using has not been disabled.
Check the network cabling between the management station
and the ADSL Modem Multiservices PSTN Voice.
Forgot or lost the Press the Reset button on the rear panel (holding it down
password for at least five seconds) to restore the factory defaults.
Troubleshooting
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