Edimax EW-7811UN User Manual page 18

8. A new icon will appear near the clock of system tray:
Left-click the icon will launch wireless network configuration utility,
and you can right-click the icon to show the quick menu of
configuration utility. This icon also uses different color to show the
status of wireless connection:
Wireless connection is established, good signal reception.
Wireless connection is established, weak signal reception.
Connection is not established yet.
Wireless network card is not detected.
For detailed instructions of wireless network configuration utility, please
see next chapter.
HERE!
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