User's Manual

DB108-WL wireless ADSL MODEM manual
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z Electromagnetic: in accordance with FCC, ETSI and CISPR standard
z IEEE 802.11b standard.
85 ENVIRONMENT REQUIREMENTS
z Temperature: 5°C40°C(41F104F)
z Relative humidity:0%95%
z Electromagnetic disturbanceFCC PART15&68
A. Troubleshooting
Phenomena Solution
The indicator of power
supply is not on
1. Make sure the connection of power supply is correct.
2. Make sure the switch of power supply is turned on.
3. Make sure the output of power supply is correct.
The indicator of PC is not
on
1. Check the connection of cable and network adapter.
2. Make sure that the correct cable is used.
3. Make sure the cable works fine by pinging the host IP address.
Can not access Internet or
remote networks
1. Make sure the problems list above are all eliminated.
2. Make sure the software configuration of the ADSL Modem is
correct.
3. Make sure you have restarted the ADSL Modem after
configuration change.
4. Check IP connection using ping command.
5. Make sure the DNS of computer is correct.
Can’t access some
WEB server
1 The MTU of operating system might be too large
2 Upgrade the operating system with patches.
Can not log on to the
configuration page
1. Make sure the PC indicator is on.
2. Make sure the configuration of TCP/IP is correct.
3 Make sure the data indicator of Modem is on when using
Ping command.
4 Make sure the user name and password is correct.
5 Reset the device.
6 Rewrite the software to flash memory through USB cable.