Wi-Fi Keeps Disconnecting — What Causes It & How to Fix It

What Does This Error Mean?

Wi-Fi that keeps disconnecting is one of the most frustrating home tech problems. The cause can be your device, your router, your ISP, or radio interference from nearby appliances. Finding the cause takes a bit of narrowing down — but most cases are fixed with a driver update or router setting change.

Affected Models

Windows 10
Windows 11
macOS
Android
iOS
All devices

Common Causes

The Wi-Fi adapter's power management setting is turning it off to save battery
Channel interference from neighboring Wi-Fi networks or household appliances
The router's firmware has a bug causing it to drop connections
The device's Wi-Fi driver is outdated and becomes unstable over time
The ISP connection itself is dropping intermittently, causing the router to disconnect clients

How to Fix It

Disable Wi-Fi power management on Windows. Go to Device Manager > Network Adapters > right-click your Wi-Fi adapter > Properties > Power Management > uncheck 'Allow the computer to turn off this device to save power'.

This is the number one cause of repeated Wi-Fi drops on Windows laptops.
Change the Wi-Fi channel on your router. Log into the router admin page and set the channel manually to 1, 6, or 11 for 2.4GHz, or a clear channel for 5GHz. Avoid 'Auto' if there are many neighboring networks.

Channel congestion from neighbors causes intermittent drops that look like your router is failing.
Update your Wi-Fi adapter driver. Go to the laptop manufacturer's support website and download the latest Wi-Fi driver for your model. Install it and restart.

Manufacturer website drivers are often newer and more stable than what Windows Update provides.
Update your router firmware. Log into the router admin page and look for a firmware update option. Keeping firmware current fixes known disconnection bugs.

Many router firmware updates specifically address client disconnection stability issues.
Set a fixed DNS server. In your network adapter settings, set DNS to 1.1.1.1 (primary) and 8.8.8.8 (secondary). ISP DNS servers sometimes go down and cause apparent internet disconnections.

When the DNS server goes down, websites stop loading even though the connection is still active — it looks like a disconnect.

When to Call a Professional

If disconnections affect all devices at the same time, the router or ISP is the cause. Contact your ISP — they can check for line issues remotely. If only one device keeps disconnecting, update its driver and disable power management for the adapter. Persistent issues after all fixes may require a router replacement ($50–$150).

Frequently Asked Questions

How do I know if my router is the problem or my device?

The key question: does only one device disconnect, or do all devices disconnect at the same time? If all devices drop at the same time, the router or ISP is the problem. If just one device keeps dropping while others stay connected, the problem is that specific device — its driver, settings, or hardware.

Can a microwave cause Wi-Fi to drop?

Yes. Microwaves generate strong 2.4GHz radio waves when running. If your router broadcasts on 2.4GHz and you are between the microwave and router, the interference can drop your connection. Switching your devices to the 5GHz band eliminates this problem entirely.

Why does Wi-Fi only disconnect at certain times of day?

Peak usage hours — typically evenings — overload ISP networks in many areas. Your internet may be technically connected but so congested that it appears to drop. Also, scheduled firmware updates on routers often happen late at night or early morning, causing brief disconnections. Check your router's admin page for any scheduled tasks.