Chapter
4
Troubleshooting
This chapter contains information to help you solve issues. If the industrial PoE+ switch
is not functioning properly, ensure that it was set up according to the instructions in this
manual.
Issue
Solution
The l
ink LED
does not illuminate
Check the cable connection.
The industrial PoE+ switch doesn't connect to
the network
1.
Check the LNK/ACT LED on the
industrial
PoE+ switch.
2. Try another port on the industrial PoE+
switch.
3. Make sure the cable is installed properly.
4.
Make sure the cable is the right type.
5. Turn off the power. After a while, turn on
power again.
The port link LED illuminates
, but the traffic is
irregular
Check that the attached device is not set to
dedicated 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.
The industrial PoE+ switch doesn’t connect to
the network.
Check each port LED on the industrial PoE+
switch. Try another port. Make sure the cable is
installed properly and the right type. Turn off the
power. After a while, turn on the power again.
The industrial PoE+ switch does not power up. 1. Check to ensure that the AC power cord is
not faulty and that it is inserted properly.
2. If the cord is inserted correctly, replace the
power cord.
3. Check that the AC power source is working
by connecting a different device in place of
the switch.
4.
If that device does not work, check the AC
power
NS2052-8P-2C Industrial PoE+ Switch User Manual
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