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68
6. Troubleshooting
1. The LAN LED on the front panel does not light up.
STEPS
CORRECTIVE ACTION
1
Check the Ethernet cable connections between your ADSL2+
Router and the computer or hub.
2
Check for faulty Ethernet cables.
3
Make sure your computer’s Ethernet card is working properly.
4
If these steps fail to correct the problem, contact your local
distributor for assistance.
2. The ADSL LED on the front panel does not light up.
STEPS
CORRECTIVE ACTION
1
Check the telephone wire and connections between ADSL2+
Router DSL port and the wall jack.
2
Make sure that the telephone company has checked your phone
line and set it up for DSL service.
3
Reset your ADSL line to reinitialize your link to the DSLAM.
4
If these steps fail to correct the problem, contact your local
distributor for assistance.
3. I cannot access the web management.
STEPS
CORRECTIVE ACTION
1
Make sure you are using the correct IP address of ADSL2+
Router. Check the IP address of ADSL2+ Router.
2
Your computer and ADSL2+ Router’s IP addresses must be on
the same subnet for LAN access.
3
If you have changed ADSL2+ Router’s LAN IP address, then
enter the new one as the URL.
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69
The following procedures will help you to check the current IP Address setting of
your computer. You can compare if your computer and router’s IP Addresses are
in the same subnet.
Step 1: Click “Start” and select “Run”.
Step 2: Type in “cmd” and click “OK”.
Step 3: Type ipconfig /all and click enter.
z
Your PC’s IP address is 192.168.2.111.
z
The PC’s Subnet Mask is 255.255.255.0.
z
Your PC’s MAC Address is the one entitled Physical Address (00-00-E2-82-
C3-AD).
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70
4. I forget my login username and/or password.
STEPS
CORRECTIVE ACTION
1
If you have changed the password and have now forgotten it, you
will need to upload the default configuration file. This will erase all
custom configurations and restore all of the factory defaults
including the password.
2
Press the Reset button for five seconds, and then release it.
When the LAN LED begins to blink, the defaults have been
restored.
3
The default username is “admin”. The default password is “1234”.
The Password and Username fields are case-sensitive. Make
sure that you enter the correct password and username using the
proper casing.
4
It is highly recommended to change the default username and
password. Make sure you store the username and password in a
save place.
5. I cannot access the Web Management of the router after activating the ACL
function.
STEPS
CORRECTIVE ACTION
1
When ACL is activated, you have to set the ACL rule for allowing
some users to use some services. Check if you have set the
rules. If not, all the users are forbidden using any of service from
LAN or WAN.
2
If you cannot access the Web Management of the router, please
press the Reset button over 5 seconds to restore to defaults.
3
After the router is restarting, log in the router with the default IP
Address 192.168.2.1.
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71
6. Initialization of the ADSL connection failed.
STEPS
CORRECTIVE ACTION
1
Check the cable connections between the ADSL port and the
wall jack. The ADSL LED on the rear panel of the router should
be on.
2
Check VPI, VCI, type of encapsulation and type of multiplexing
settings are the same as what you collected from your ISP.
3
Restart the router. If you still have problems, you may need to
verify your VPI, VCI, type of encapsulation and type of
multiplexing settings with the ISP.
7. I cannot get a WAN IP address from the ISP.
STEPS
CORRECTIVE ACTION
1
The ISP provides the WAN IP address after authenticating you.
Authentication may be through the user name and password, the
MAC address or the host name.
2
The username and password apply to PPPoE and PPPoA
encapsulation only. Make sure that you have entered the correct
Service Type, User Name and Password (be sure to use the
correct casing).
8. Internet connection disconnects.
STEPS
CORRECTIVE ACTION
1
Check the schedule rules.
2
If you use PPPoA or PPPoE encapsulation, check the idle time-
out setting.
3
Contact your ISP.
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72
7. Glossary
10Base-T
It is an Ethernet standard for Local Area Network (LAN). 10Base-T uses a twisted
pair cable with maximum length of 100 meters.
AAL
ATM Adaptation Layer that defines the rules governing segmentation and
reassembly of data into cells. Different AAL types are suited to different traffic
classes.
ADSL
Asymmetric Digital Subscriber Line, as its name showing, is an asymmetrical
data transmission technology with high traffic rate downstream and low traffic
rate upstream. ADSL technology satisfies the bandwidth requirement of
applications, which demand “asymmetric” traffic, such as web surfing, file
download and Video-on-demand (VOD).
ATM
Asynchronous Transfer Mode is a layer 2 protocol supporting high-speed
asynchronous data with advanced traffic management and quality of service
features.
bps
Bits per second, a standard measurement of digital transmission speeds.
Bridge
A device that connects two or more physical networks and forwards packets
between them. Bridges can usually be made to filter packets, that is, to forward
only certain traffic. Related devices are: repeaters which simply forward electrical
signals from one cable to the other and full-fledged routers which make routing
decisions based on several criteria.

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