Troubleshooting - Panasonic GA-ML4TPoE+ Series Installation Manual

Troubleshooting

If you find any problem, please take the following steps to check.
 LED
The POWER LED (Power) is not lit.
 Check if the power cord is disconnected. Please confirm that the power cord is
securely connected to the power port.
 Is the Switching Hub being used at a temperature between 0 and 50°C?
Use the Switching Hub in its operating temperature range.
Note: If used at a temperature out of the operating temperature range, the
protection equipment becomes activated and Switching Hub power stops.
The Port LED is not lit in Status mode.
 Is the cable correctly connected to the target port?
 Is the cable appropriate to use?
 Is the terminal connected to the relevant port conforming with 10BASE-T,
100BASE-TX, or 1000BASE-T standard?
 Auto-negotiation may have failed.
Check the port settings of this Switching Hub or the terminal settings.
 Is the correct Port LED display mode selected using the LED display switch
button?
The Port LED (left) lights in orange.
 Loop is occurring. By removing the loop, orange LED will be turned off.
LOOP HISTORY LED Blinks in orange.
 This is to notify that there is a port in which a loop is occurring, or has been
removed within 3 days.
 Communications are slow.
 Are the communication speed and mode settings correct?
If the proper communication mode signal cannot be obtained, apply
half-duplex mode.
Please reconfirm auto-negotiation setting.
Do not set forced full-duplex for the equipment that the Switching Hub is
connected to.
 Is not the utilization ratio of the network to which this Switching Hub is
connected too high?
Try separating this Switching Hub from the network.
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