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T
ROUBLESHOOTING
A-3
Management Problems
Cannot connect
using the web
browser
•
Be sure to have configured the BARRICADE with a
valid IP address, subnet mask, and default gateway.
•
Check that you have a valid network connection to the
BARRICADE and that the port you are using has not
been disabled.
•
Check the network cabling between the management
station and the BARRICADE.
Forgot or lost
the password
•
Press the
Reset
button on the bottom panel (holding
it down for at least six seconds) to restore the factory
defaults.
Troubleshooting Chart
Symptom
Action
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T
ROUBLESHOOTING
A-4
Wireless Problems
A wireless PC
cannot associate
with the
BARRICADE.
•
Make sure the wireless PC has the same SSID settings
as the BARRICADE.
See “Channel and SSID” on page 4-26.
•
You need to have the same security settings on the
clients and the BARRICADE. See “Security” on page
4-29.
The wireless
network is often
interrupted.
•
Move your wireless PC closer to the BARRICADE to
find a better signal. If the signal is still weak, change
the angle of the antenna.
•
There may be interference, possibly caused by
microwave ovens or wireless phones. Change the
location of the possible sources of interference or
change the location of the BARRICADE.
•
Change the wireless channel on the BARRICADE.
See “Channel and SSID” on page 4-26.
•
Check that the antenna, connectors, and cabling are
firmly connected.
The
BARRICADE
cannot be
detected by a
wireless client.
•
The distance between the BARRICADE and wireless
PC is too great.
•
Make sure the wireless PC has the same SSID and
security settings as the BARRICADE. See “Channel
and SSID” on page 4-26 and “Security” on page 4-29.
Troubleshooting Chart
Symptom
Action
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B-1
A
PPENDIX
B
C
ABLES
Ethernet Cable
Caution:
Do not plug a phone jack connector into an RJ-45 port.
For
Ethernet connections, use only twisted-pair cables with RJ-45
connectors that conform to FCC standards.
Specifications
Wiring Conventions
For Ethernet connections, a twisted-pair cable must have two pairs of
wires. Each wire pair is identified by two different colors. For example, one
wire might be red and the other, red with white stripes. Also, an RJ-45
connector must be attached to both ends of the cable.
Cable Types and Specifications
Cable
Type
Max. Length
Connector
10BASE-T
Cat. 3, 4, 5 100-ohm UTP
100 m (328 ft)
RJ-45
100BASE-TX
Cat. 5 100-ohm UTP
100 m (328 ft)
RJ-45
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C
ABLES
B-2
Each wire pair must be attached to the RJ-45 connectors in a specific
orientation. The following figure illustrates how the pins on an Ethernet
RJ-45 connector are numbered. Be sure to hold the connectors in the same
orientation when attaching the wires to the pins.
Figure B-1.
RJ-45 Ethernet Connector Pin Numbers
RJ-45 Port Ethernet Connection
Use the straight-through CAT -5 Ethernet cable provided in the package
to connect the BARRICADE to your PC. When connecting to other
network devices such as an Ethernet switch, use the cable type shown in
the following table.
Attached Device Port Type
Connecting Cable Type
MDI-X
Straight-through
MDI
Crossover
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RJ-45 P
ORT
E
THERNET
C
ONNECTION
B-3
Pin Assignments
With 10BASE-T/100BASE-TX cable, pins 1 and 2 are used for
transmitting data, and pins 3 and 6 for receiving data.
Straight-Through Wiring
If the port on the attached device has internal crossover wiring (MDI-X),
then use straight-through cable.
RJ-45 Pin Assignments
Pin Number
Assignment*
1
Tx+
2
Tx-
3
Rx+
6
Rx-
* The “+” and “-” signs represent the polarity of the
wires that make up each wire pair.
Straight-Through Cable Pin Assignments
End 1
End 2
1 (Tx+)
1 (Tx+)
2 (Tx-)
2 (Tx-)
3 (Rx+)
3 (Rx+)
6 (Rx-)
6 (Rx-)
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