My spouse’s Galaxy Flip5 keeps turning it’s WiFi on its own especially when we’re home. After I checked, it seems Smartthings is the culprit. I’ve deleted all routines with locations related, change systems settings > not allowed, and other settings that can control wifi connections. However, one particular setting was greyed out: wifi control > allow app to control Wi-Fi. So Samsung Smartthings permanently controls wifi on/of?? This is unacceptable!! Any solutions??
Maybe try in WiFi settings tap the 3 dot menu and see if the setting to “Turn WiFi on/off automatically” is enabled.