Q: Why my wireless adapter does not detect the signal of my wireless router?
The wireless adapter should detect the signal from the wireless router no matter what kind of wireless encryption (WEP, WPA TKIP, WPA2 AES) of the wireless network as long as the signal is transmitted in the 2.4GHz band.
There are several possible reasons that the Edimax Wireless Utility can not detect the signal of your wireless network.
1. Verify your wireless router uses 2.4GHz rather than the 5GHz frequency. Please check the model of your wireless router to make sure it support 2.4GHz frequency. Then log into the router's configuration page to make sure the 2.4GHz is enabled.
2. Make sure the SSID broadcast of your wireless router is enabled. You can verify that in the router's configuration page also.
3. Go into Device Manager in the Windows's Control Panel -> System (or by right click on "My Computer" and go to Properties). Make sure the wireless adapter islisted under Network Adapters category in Device Manager.
4. If your wireless adapter uses detatchable external antenna, you may detatch the antenna from the wireless router. Then re--attach the wireless antenna to make sure the antenna is connected to the wireless adapter.
5. If the distance between the wireless router and the computer is too far, the signal of the wireless router may not reach to the computer. You may temporarily move your wireless router to the closer location with the computer. You can temporarily disconnect the wireless router with the internet modem. Just bring the wireless router with its power supply. Maybe the signal can be detected in a shorter distance with the computer.