Your modem continuously tries to maintain an optimum wireless internet connection to your devices. If the wireless connection to your Wi-Fi Hotspot is still unstable, try optimising the Wi-Fi signal.
Do not place your modem in drawers and cupboards or near windows and mirrors. Do not place your modem close to a wall and electronic equipment such as baby monitors and wireless phones which may interrupt the Wi-Fi signal. Place your modem centrally in your home or near the place where the Wi-Fi Hotspot is used the most. Place your modem as high up as possible. Place your modem in an area with no obstacles which could block the Wi-Fi signal.