Contec FX-DS540-APDL-U, User Manual

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7. Troubleshooting
66
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.