Troubleshooting - Omron WE70-AP Operation Manual

Appendices

Troubleshooting

A wireless unit has LEDs that indicate unit statuses. Checking these LEDs can help identify details and
cause of a problem.
LED Indication
POWER LAN WIRELESS
If communication is still unavailable after taking actions shown above, perform the followings:
• Delete the ARP table in PC connected to WE70 (execute "arp -d" command at command prompt).
• Restart devices connected to WE70 such as PLC, PT, or hub.
• Review settings of devices connected to WE70.
• Review the network configuration.
Appendices-2
Off:
AP: Access Point, CL: Client
Estimated Cause
The power is not supplied.
Line voltage is low.
AP's DFS function is working.
Indefinite
A LAN cable is not connected.
A LAN cable is inappropriate (straight
or cross).
SSIDs are unmatched between an AP and a CL.
Encryption types are unmatched.
CL's SSID of AP's Any Access Denial
is configured as blank.
AP's 11g protective function is config-
ured as dedicated to g while communi-
cation is being tried by a 11b terminal.
Clients exceeding the client count
limitation are trying to connect.
MAC address filtering is working.
Other BSSID is not being registered
for AP-to-AP bridging.
TKIP, AES, or WOC KEY is configured as
an encryption type for AP-to-AP bridging.
Receiving electric field intensity is
low.
Encryption method are unmatched.
Encryption keys (WEP keys or PSKs)
are unmatched.
An IP address is inappropriate.
CL-to-CL communication is being tried while CL-
to-CL communication via an AP is being disabled.
Super A/G setup is wrong for AP-to-
AP bridging.
Key index setups of WEP key are
unmatched when Super A/G is used
for AP-to-AP bridging.
, On: , Flashing: , Indefinite:
Action
Supply 24VDC to the DC connector.
Supply 24VDC power.
Please wait for 1 minute before starting.
Press the RSSI button and check LED indi-
cation again (CL only)
Connect a LAN cable.
Replace between a straight cable and a
cross cable.
Match SSIDs.
Match encryption types.
Configure AP's Any Access Denial as No, or
specify CL's SSID as AP's.
Enable or disable 11g protection.
Reduce number of clients to the specified
value or less.
Register the CL to MAC address filtering, or
disable AP's MAC address filtering.
Register BSSID of the other part of commu-
nication.
Change the encryption method to WEP or
OCB AES.
Reduce a wireless distance or use the repeater
function to ensure sufficient electric field intensity.
Match encryption method.
Match encryption keys.
Set an appropriate IP address and a subnet
mask.
Enable Communications between CLs via
an AP.
Match Super A/G setups.
Match key indexes of WEP key.
Space