Here is a guideline for you connect your windows devices to Acer C202i Projector. here is the guideline for you.
How to Do Plug and Play on Acer C202i Projector (Windows 10 devices)
(1) Select Windows 10 on main menu of projector, and then select Wireless menu by pressing “OK” key.
(2) Make sure both of your projector and computer are connected to the same WiFI router.
(3) Click quick key by DO on the computer, and connect to the device named by “Beam-XXXX” to start your projection.
Note: Please upgrade your windows 10’s operation system to the lastest version.
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