Troubleshooting; During Installation Work - Hitachi EM-G21 User Manual

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7. TROUBLESHOOTING

7.1 During Installation Work

First check the flowchart below to determine your stage of installation work. Then, try
actions thereunder that may apply to your stage.
Is the POWER lamp in the front access area of the Gateway lit in
green?
Is the ALARM lamp in the front access area of the Gateway off?  No: Try actions for Stage b.
When the WAN port in the rear access area of the Gateway is in
use, is the WAN lamp in the front access area lit in green or
blinking in green?
When any of the wired LAN ports in the rear access area of the
Gateway is in use, is the subject LINK lamp in the rear access
area lit in green or blinking in green?
Is the IP address of the connected PC set to be automatically
assigned?
Is the connected PC able to open and perform the "EMS
Gateway" setup page in the browser?
Is there any other trouble?
Stage Symptom
a.
The POWER lamp in the front access
area of the Gateway is not lit in green.
b.
The ALARM lamp in the front access
area of the Gateway is lit in red.
c.
When the WAN port in the rear access
area of the Gateway is in use, the WAN
lamp in the front access area is not lit in
green or not blinking in green.
 Yes
 Yes
 Yes
 Yes
 Yes
 Yes
Suspected Cause and Action To Be Taken
 Check if the power cord plug is firmly inserted
in the outlet.
 Try connecting any other device to the outlet to
see if the power is supplied to the outlet.
 If the power cord is plugged to a service outlet
of any other device such as PC, plug the power
cord directly to a mains outlet. Otherwise,
disconnection of power to the service outlet
also disconnects power to the Gateway.
 Check if the power cord is free of damage. If
you find any damage, immediately unplug the
power cord from the outlet.
The Gateway is in error. Restart the Gateway by
unplugging and plugging the power cord with an
interval of 10 seconds or longer between
unplugging and plugging.
 Check if both the Gateway and the WAN side
equipment are turned on.
 Reconnect the LAN cable between the WAN
port of the Gateway and the LAN port of the
WAN side equipment until you hear a click from
each port connection.
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 No: Try actions for Stage a.
 No: Try actions for Stage c.
 No: Try actions for Stage d.
 No: Try actions for Stage e.
 No: Try actions for Stage f.
 Yes: Try actions for Stage g.
(Continued on next page)

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