Troubleshooting
51
Troubleshooting
5
The DW4020 is extremely reliable. If you find you cannot surf the Internet or
the DW4020 seems to have a problem, follow this sequence of steps below to
identify and fix the problem.
•
Check whether the DW4020 LEDs or on or off.
The LEDs may indicate that
a connection has become loose. Reconnecting a cable or power cord may
restore function. See
DW4020 LEDs status
.
•
Check if the LEDs are blinking in a pattern.
The LEDs can blink in a
pattern. The patterns correspond to the receive and transmit status codes
discussed in
Transmit Status messages
on page 11 and
Receive Status
messages
on page 15. See
LED blinking indicating status codes
on page 58
for a discussion of the blinking LEDs.
•
Check if the LEDs on the back of the Gateway or on or off.
The LAN ports
on the back of the Gateway have LEDs. See
Gateway rear panel Ethernet
LEDs
on page 57.
•
Contact your service provider.
If the corrective actions described in this
chapter and Chapter 2 do not solve the problem, contact your service
provider.
The DW4020 LEDs
The receive modem has a RX and a READY LED. The transmit modem has a
TX and a READY LED. The Gateway has a STATUS and READY LED.
Note:
Whenever the LEDs do not function properly as described below, check to
be sure you have the correct power supply, PN 1031105-0001.
DW4020 LEDs status
This section describes the LEDs’ appearance during typical DW4020 operation.
It also describes their appearance when some basic problem is occurring.
Normal operation, no
transmit or receive
When the DW4020 is powered on but not receiving or transmitting data, it
appears as shown in Figure 46. The modems’ READY LEDs are continuously
lit. Both the Gateway LEDs are continuously lit.
Figure 46: DW4020 normal operation, no data received or transmitted
Modems’ READY
LEDs continuously lit
Both Gateway LEDs
continuously lit
Summary of Contents for DirecWay DW4020
Page 4: ... iv 1032564 0001 Revision A ...
Page 26: ...xxvi ...
Page 30: ... Contents xxx 1032564 0001 Revision A ...
Page 74: ...44 Configuring network settings and e mail ...
Page 98: ...68 Assembling the DW4020 ...