Contec DS540-APDLAP User Manual

7. Troubleshooting

FX-DS540-APDL-U

Check the peripheral environment and place of installation

A nearby source of electromagnetic interference can prevent communication. In general locations

(excluding factories) the following may be sources of electromagnetic emissions.

5GHz band not conforming to IEEE802.11(when using by IEEE802.11a) or 2.4GHz

band(when using by IEEE802.11b/IEEE802.11g) wireless network.

Electric devices which give off 2.4GHz band electric wave - microwave oven, security gate (it

is a antitheft gate in the shop), copy machine and so on.

Most electromagnetic sources other than wireless networks are local and not continuous, and therefore

by moving the location of the unit and waiting briefly, communication may be possible.

Sometimes communication is hindered by attenuation of electric waves. Attenuation occurs

naturally as distance from the source of transmission increases, but may also be caused by objects in

the path of the transmission. The objects primarily responsible for attenuation are the following.

- Concrete

walls

Metallic surfaces around this product

When You Cannot Perform Setup Using a Browser

Check that you are using the correct IP address for the AP.

Check that the IP address of your PC is in the same network group as the IP address of the AP.

Use a recommended browser (Microsoft Internet Explorer 5.01 or later, Netscape Navigator 6 or

later)

You cannot use a browser to communicate with the AP if the TCP/IP protocol is not installed on

your PC.

When the AP Will Not Start

Check the power LED

Check whether the “POWER” LED is illuminated. If not, check the power cable and confirm that

the power plug and mains plug are correctly connected.

Check whether the Power LED is flashing. If the power LED is still flashing more than 5 minutes

after the power is switched on, the problem may be an AP firmware failure. In this case, contact

your retailer.