What is the maximum number of devices I can connect using Wi-Fi Direct?
You can connect up to 8 computers or other devices to your product using a Wi-Fi Direct (Simple AP) connection. If you want to add another device and the limit has been reached, you must disconnect an existing connected device first.
From the official Epson EcoTank ET-3850U All-in-One Wireless Printer manual, page 50
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