Edimax EW-7811Un Manual

If the computer can't detect the wireless adapter

Make sure the adapter is plugged in correctly.

Make sure the computer meets the system requirement and install the latest driver. You can
download the driver at

Try to connect the wireless adapter with a different port on the computer

Try to restart the computer.

Update the USB drivers. (Check motherboard/logic board manufacturer or computer manufacturer
website for latest drivers)

Test the adapter on a different computer to verify whether it is working or faulty.
How to check my wireless adapter is installed properly
Windows 7 - Go to Start > Computer [Right Click] > Properties > Device Manager.
Windows 8.1/10 - Press the Windows key and X together and then click Device Manager.

Click the "Network Adapters".

Right-click on "Edimax ...... Adapter" and select properties to check that the drivers are installed
properly.

When you see "This device is working properly." in the windows, you have already installed the
driver successfully.
How to fix the issue that my Adapter can't work

Check if your wireless password is correct.

Try to uninstall the driver and install the driver again.

Use automatic troubleshooting. Right-click on the network icon in your system tray and select
"Troubleshoot Problems" to run the Windows Network Diagnostic routine. This can sometimes
correct common issues.

Try to reboot your PC.
The wireless adapter LED does not light up.

Remove and re-insert the wireless adapter.

Check the Windows device manager to see whether the wireless adapter is enabled and recognized.

Re-install the driver and try it again.

Insert the wireless adapter in a different USB port on your computer.
What should I do if I can't join a wireless network

Make sure the adapter is connected with the computer's USB port properly.

Check if you have installed the driver for your adapter successfully. You can download the latest
driver at http://www.edimax.com

Re-install the driver and try again.

Check the LED indicators on the wireless router or access point are functioning properly. If not,
check that the AC power adapter and Ethernet cables are firmly connected.
http://www.edimax.com