Problem and
Indication
Possible Cause
Corrective Action
Failure to establish
wireless link (“D”
models/external
antennas)
1. Power supply to units
may be faulty.
2. Cables may be
improperly connected
3. There may be some
problem with antenna
installation.
1. Verify power to units.
2. Verify that all cables are con-
nected securely.
3. Refer to previous Section and
verify wireless link between the
units.
4. Verify that the antenna(s) are
properly installed (see relevant
section in this manual):
•
Check antenna alignment.
•
Verify that antenna
polarization is the same at both
ends.
•
Verify that the range matches
specifications.
•
Verify line-of-sight/antenna
alignment/antenna height.
Wireless link
established, but
there is no Ethernet
activity (DWL-
1800B and DWL-
1800R units).
1. Ethernet hub port or
UTP cable is faulty.
2. Ethernet port in unit is
faulty.
1. The
DWL-1800R
is associated to a
DWL-1800B unit that is
not connected correctly to
the LAN.
1. Check that the LINK LED is lighted
Green. If this is not the case, the port is
inactive. Try another port on the hub or
another UTP cable.
2. Verify that Ethernet port in unit is
working. Ping unit to verify Ethernet
connection.
3. Verify that you are using a cross-over
UTP cable (pins 1 & 3, 2 & 6) if connected
directly to a workstation, or a straight-
through cable if connected to a hub.
4. Check the unit’s LINK LED indicator and
check the Ethernet counters in the monitor
to verify Ethernet activity (see manual
section 3.3.4).
5. Check that the DWL-1800B is correctly
connected to the LAN.
