If every device disconnects
The router, internet service, signal coverage, power or wider network configuration may be the problem.
Connectivity help
Why does my laptop Wi-Fi
keep disconnecting?
The fastest clue is whether every device disconnects or only one laptop does.
If only one laptop disconnects
Check the laptop's Wi-Fi adapter, driver, saved network profile and Windows power settings. A failing adapter can also create intermittent drops.
Signal and interference matter
Distance, walls, crowded wireless channels and poor router placement can produce a connection that works near the router but drops elsewhere.