Wilan LIBRA 5800 AP, User Manual

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Troubleshooting
100 Libra 5800 Series User Guide
Station ID–Each unit must have a unique RF Station ID
Access code–Only units with the same access code
can communicate
Scrambling code–Base station and remote units must
use the same scrambling codes to decode messages
Acquisition code–All units must have the same
acquisition code to communicate
Center frequency–Units must have the same center
frequency to communicate
IP address/subnet mask–Incorrectly configured IP
addresses result in units being unable to communicate.
Check that IP addresses are unique for each unit within
a subnet and that the correct subnet mask is being
used.
IF cable failure or
damage Visually inspect cables for damage
Sweep cables and replace if necessary
Poor link
performance Distance Check the maximum remote distance configuration
setting
Excessive Bit errors
and processing errors Multipath interference–Align or relocate antennas or
radio.
Signal absorption Check LOS for obstacles such as trees
Change alignement of antenna to take advantage of
beneficial multipath signals
Move antenna to better location or remove obstacle if
possible
Center frequency Set units from different systems in the same
geographical area to different center frequencies–
overlapping wavelengths from other systems will
degrade performance
Overpowering co-
located unit Output power from one unit can overpower another, co-
located, radio, even if units operate on different
channels
SNMP can’t
be activated IP filtering configured
incorrectly for SNMP Change IP filtering to enable SNMP
New
configuration
will not take Incorrectly upgraded
software Reload the software image using ftp
Indication Possible Cause Corrective Action