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Router User’s Guide
63
Appendix A
Troubleshooting
Connection problems usually occur when the router’s software configuration contains incomplete or
incorrect information. The router’s diagnostic tools can help you identify and solve many of these
problems.
Basic Troubleshooting Steps
Before contacting Technical Support, you should attempt to resolve the issue by following these steps:
1.
Check the LEDs on the front panel to diagnose the possible problem.
2.
Check specific issues addressed in this chapter, and follow the instructions for resolving the problem.
3.
Reboot the router. Any settings you have configured will be saved.
4.
Reset the router only as a last resort. You will lose any settings you have configured.
A
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Router User’s Guide
Troubleshooting
Interpreting the LED Display
The LED indicators on the front of the router give you a visual clue to the router activity. When the router
is configured and working correctly, all LED indicator lights briefly turn a solid green. The following table
shows the possible states indicated by the LEDs. If the LEDs indicate a problem, refer to “Resolving
Specific Issues” later in this chapter.
LED
pwr
dsl
USB
enet*
Off
No power to
router
-
No power to router
- DS
L signal not
detected
- No power to
router
- No USB device
connected
- USB driver not
installed or
installed
incorrectly
- No power to
router
- No Ethernet
device connected
- Wrong Ethernet
cable used
(cross- over
instead of
straight-through)
Green
Normal system
operation
Connected and ready for
data traffic
Normal USB
operation, link okay,
no user traffic
Normal Ethernet
operation, link okay,
no user traffic
Blinking
Green
N/A
- Steady blinking:
DSL attempting to
connect
- Sporadic blinking:
DSL connected and
user traffic flowing
USB user traffic
flowing in either
direction
Ethernet user traffic
flowing in either
direction
Blinking
Red/
Green
Flash Write in
progress
N/A
N/A
N/A
Red
- POST tests in
progress (first
30 sec. after
powering on or
rebooting)
- POST error
occurred
N/A
N/A
N/A
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Router User’s Guide
Troubleshooting
Resolving Specific Issues
pwr
LED Not Lit
If the
pwr
(power) LED i
s
not lit, it is not connecting to the power source. Verify that the power cord is
firmly plugged into the back panel of the router and that the other end is plugged into an active AC wall or
power-strip outlet.
dsl
LED Not Lit
If the DSL LED is not lit, it is not detecting a valid signal from the Central Office (CO). Verify that the DSL
cable is plugged into the correct router port and the router power cord is plugged into the electrical outlet.
If the cables are secure, you should contact your Service Provider.
enet
LED Not Lit
This indicates that there is no Ethernet link detected. If you are using the Ethernet connection method,
check the Ethernet cable connection from the computer to the router. If you have used the wrong cable,
the LED on the Ethernet (NIC) card in your computer will not be lit either.
USB
LED Not Lit
This indicates that there is no USB link detected. If you are using the USB installation method, check the
USB cable connection from the computer to the router.
Login Password Error
If after being prompted for the login password, you receive the error message:
Login Password is
invalid:
Retype the password, and then click
Save Settings
.
If you forget your password, you must reset the router.
Note
:
The password is case-sensitive. Be sure that you have not accidentally activated the Caps key.
POST Failure
(red
pwr
LED)
POST is the router’s “power-on self-test.” When you power on or reboot the router, the
pwr
LED goes to a
solid red until one of two things occurs: it either fails its initial POST tests, or it comes fully up and is ready
to run.
If POST passes, the router continues through the rest of its initialization, and the
pwr
LED changes to
solid green.
If the initial POST diagnostic tests fail, the
pwr
LED will remain red, indicating a POST failure, and will
lock the router. You will need to contact Efficient Networks Technical Support to resolve this issue.
65
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Router User’s Guide
Troubleshooting
Contacting Technical Support
If you still cannot resolve the issue after following the recommended troubleshooting procedures, contact
Efficient Networks Technical Support.
Telephone:
(972) 852-1000
Fax:
(972) 852-1001
Email:
Internet:
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Router User’s Guide
67
Appendix B
Configuration Data Sheets
Your router is preconfigured with settings specific to your network. We strongly suggest that you record
these settings in case you need to reestablish your original configuration.
Administrative User Setup
Parameter
Default Value
Your Value
User Name
admin
Password
Attack Detection System
Parameter
Default Value
Your Value
Enable ADS
Same Source/Destination
Address
Filter:
Log:
Filter:
Log:
Broadcast Source Address
Filter:
Log:
Filter:
Log:
LAN Source Address On WAN
Filter:
Log:
Filter:
Log:
Invalid IP Packet Fragment
Filter:
Log:
Filter:
Log:
TCP NULL
Filter:
Log:
Filter:
Logx:
TCP FIN
Filter:
Log:
Filter:
Log
TCP Xmas
Filter:
Log
Filter:
Log
Fragmented TCP Packet
Filter:
Log
Filter:
Log
Fragmented TCP Header
Filter:
Log
Filter:
Log
Fragmented UDP Header
Filter:
Log
Filter:
Log:
Fragmented ICMP Header
Filter:
Log
Filter:
Log
B

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