Intermec MobileLAN access WA21 System Manual page 207

MobileLAN access System Manual
Chapter 8 – Managing, Troubleshooting, and Upgrading Access Points
General Troubleshooting (continued)
Problem/Question
The Ping Utility screen
does not appear when you
click a MAC address or an
IP address in the AP
Connections screen.
You cannot connect to the
access point using
MobileLAN manager or
another SNMP
management station.
The end device cannot
connect to the network.
The end device cannot
synch to the access point.
The end devices are unable
to roam from one access
point to another.
The end devices are unable
to roam between a
MobileLAN access product
and 011X devices.
Possible Solution/Answer
The web browser you are using does not have Java
support. Intermec recommends that you use Internet
Explorer v3.0 or later or Netscape Communicator v4.0 or
later.
Verify that you did not disable the SNMP Access field in
the Security screen.
•
From the Maintenance menu, choose AP Connections
and verify that the MAC address of your end device
appears on your PC screen. If it does not appear, your
end device is not communicating with the access point.
Check your radio configuration settings.
•
Verify that the access point is not filtering out the type
of traffic you are trying to pass through it.
If you are using 802.11b or 802.11a radios:
•
Verify that the end device and the access point have the
same SSID (network name) and security.
If you are using OpenAir radios:
•
Verify that the end device and access point have the
same LAN ID, security ID, channel, and subchannel.
•
Verify that the access point is configured as a master
and that the end device is configured as a station.
If you are using 902 MHz radios:
•
Verify that the end device and the access point have the
same LAN ID and mode-channel.
If you are using S-UHF radios:
•
Verify that the end device and the access point have the
same frequency.
The switches in your network may not support backward
learning. Use data link tunneling to force all wireless traffic
through a fixed point so that roaming is transparent to the
bridges or switches.
The end devices must have IP addresses from the root IP
subnet.
For more information, see "About Data Link Tunneling"
in Chapter 5.
Set the Unicast Flood Mode to Hierarchical. For more
information, see "Configuring Global Flooding" in
Chapter 5.
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