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Appendix
A
Troubleshooting Guide
This chapter assists in the diagnosis and resolution of problems with WNS installation and operation.
Solution Possible Causes Problem
An additional DC power supply is required to boost the
power of the network switch. It is highly recommended Insufficient power supplied to the
WNS. The power light
on the WNS
blinks on and off,
and is dimly lit.
that a site survey is conducted to determine power
requirements during system design or modifications.
Measure voltage to the WNS. If the voltage measures less
than 15VDC, a power inserter is required. Insufficient power supplied to the
WNS to power PoE devices. PoE devices are
not operational.
Enter the PoE activation key in the web browser interface. The PoE license is not activated.
Enable the PoE feature in the web browser interface. The PoE rail is not enabled.
The WNS has no power. LEDs on the
wireless network
switch are not on.
• Check that power is connected from either the
composite cable or the test / configuration jig to the
WNS.
• Verify the network switch is connected to an
operational power supply.
• Test the power supply is supplying the correct
voltage/current for the WNS.
• Check there is sufficient power available if extending
the WNS infrastructure.
Open the WNS cover and check the membrane LEDs
mounted on the lid are connected via the ribbon cable to Connection of the LEDs to the WNS
motherboard.
the motherboard. Check the ribbon connector is correctly
orientated.
Verify the fibre link is connected and active. If a link
cannot be established through the composite cable, open The WNS fibre connector is not
connected. The fibre activity
light is not on.
the lid of the network switch and directly connect to the
fibre port with a patch cable.
Open the cover of the network switch and check the
membrane LEDs mounted on the lid are connected via Connection of the LEDs to the WNS
motherboard.
the ribbon cable to the motherboard. Check the ribbon
connector is correctly oriented.
There is a network access issue. The wireless
network cannot
• Check that the WNS is properly installed, LAN
connections are connected properly and the unit is
be configured
powered on. If the PC uses a fixed (static) IP address,
from the web
browser interface.
check that it is using an IP address within the IP range
of the network switch.
• Check that the VLAN settings on the devices upstream
on the network are not restricting access.
Wireless Network Switch User Manual 101 Revision A