Why Wifi Disconnects. Fortunately enabling Auto-Join is simple through Settings app. Depending on your phone model go to Settings Wi-Fi and press on the three-dot menu in the upper right side.

In the beginning my internet connection kept disconnecting every few hours but gradually increased in frequency to about every 30 minutes. And this is one of the reasons why your phone keeps disconnecting from Wi-Fi. The only way I.
Try switching the routers AP band.
First of all launch the Settings app by clicking on its icon. Power off the laptop and unplug the power cable. So my att wifi keeps disconnecting and reconnecting. It disconnects when the power and broadband are solid green as well.

