I regret to say that for Roav C1, the wifi needs to be turned on manually every time you need it (menu>wifi>on). I understand that it is a little inconvenience. Since Anker always cares about customers experience, we improved it in our Roav C1 pro. For C1 pro, once the wifi is turned on, the wifi will always keep on until it is turned off manually.
If you have further issue, you are welcomed to contact us via firstname.lastname@example.org. Have a nice day.