Planet Technology Planet 4-Port 10/100Mbps +1/2 100FX Fiber Port Industrial Fast Ethernet Switch ISW-621 - Manual (Page 26)

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5. TROUBLeShOOTING
This chapter contains information to help you solve issues. If the
Industrial Fast Ethernet Switch is not functioning properly, make sure
the Industrial Fast Ethernet Switch was set up according to instructions
in this manual.
The per port LED is not lit
Solution:
Check the cable connection of the Industrial Fast Ethernet Switch.
Performance is bad
Solution:
Check the speed duplex mode of the partner device. The Industrial Fast
Ethernet Switch is run at Auto-negotiation mode and if the partner is
set to half duplex, then the performance will be poor.
Per port LED is lit, but the traffic is irregular
Solution:
Check that the attached device is not set to dedicate full duplex. Some
devices use a physical or software switch to change duplex modes.
Auto-negotiation may not recognize this type of full-duplex setting.
Why the Industrial Fast Ethernet Switch doesn’t connect to the
network
Solution:
Check per port LED on the Industrial Fast Ethernet Switch. Try another
port on the Industrial Fast Ethernet Switch Make sure the cable is
installed properly Make sure the cable is the right type Turn off the
power. After a while, turn on power again.
Why the Industrial Fast Ethernet Switch doesn’t connect to the
network
Solution:
Check per port LED on the Industrial Fast Ethernet Switch. Try another
port on the Industrial Fast Ethernet Switch Make sure the cable is
installed properly Make sure the cable is the right type Turn off the
power. After a while, turn on power again.