What is the proper way to reset the Wi-Fi on the P20?
Press and hold both the Clean button and the Home button on the robot for 3 seconds, or press and hold the Reset Wi-Fi button on the remote control for 3 seconds until you hear the voice prompt. The Clean button will flash rapidly, indicating that the Wi-Fi has successfully been reset. (Page 10)
From the official Airrobo P20 Robot Vacuum Cleaner manual, page 10
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