Why Your Wi-Fi Keeps Disconnecting — and How to Fix It for Good

A Wi-Fi connection that keeps dropping is one of the most annoying network problems, because it comes and goes and is hard to pin down. The fix depends entirely on where the drop happens: in the router, on the line from your provider, or in one particular device. Spending two minutes to work out which one saves you from trying every fix on the internet in random order.

First, Find Out What Drops

When the connection breaks next time, look at your other devices before you touch anything.

The difference between the first two rows matters. If the Wi-Fi network itself disappears from the list on your phone, the problem is the router. If your phone still shows full Wi-Fi bars but pages stop loading, Wi-Fi is fine and the internet connection behind it is not — a different problem with its own guide.

When Every Device Drops

Restart the router properly. Unplug it, wait 30 seconds and plug it back in. If your provider’s modem is a separate box, restart it first and give it a couple of minutes before the router. A restart clears a memory leak or a stuck radio, which is the most common reason a router starts dropping everyone after weeks of uptime. If the problem returns within days, the restart was only a symptom treatment, so keep going.

Check for overheating. Routers are often hidden in cabinets, behind TVs or on top of other warm electronics. A router that is hot to the touch can drop connections or reboot itself. Give it open air and space on all sides.

Update the firmware. Manufacturers fix exactly this kind of instability in firmware updates, and many routers never install them on their own. Our guide on how to update router firmware shows the steps for TP-Link, NETGEAR, ASUS and other brands. Apple’s support guide for Wi-Fi problems also lists a router firmware update among its steps.

Change the Wi-Fi channel. In apartment buildings, dozens of networks compete for the same airtime. A router stuck on a crowded channel can lose devices again and again. See the best Wi-Fi channel for 2.4 GHz and 5 GHz for how to pick a quiet one.

Look at the router’s log. Most routers keep a system log in the admin pages, usually under System, Administration or Status. Entries about the WAN or internet link going down point to the provider; entries about the router restarting point to the router itself. To open the admin pages, you need your router’s IP address and its login.

If the internet light on the provider’s modem goes off or blinks each time the connection drops, the problem is on the provider’s side. Note the times, then call them: a list of exact times helps the support team find the fault on the line.

When Only One Device Drops

If the other devices stay connected, the router is fine and the fix is on the device that drops.

Forget the network and join again. A saved network profile can get corrupted after a router change or a password change. On Windows, open Settings → Network & internet → Wi-Fi → Manage known networks, select the network and choose Forget. On a phone, open the network in the Wi-Fi settings and tap Forget This Network. Then reconnect with the password.

Turn off Wi-Fi power saving on Windows laptops. Windows can switch the Wi-Fi adapter off to save power, and some adapters do not wake up cleanly. Microsoft’s own troubleshooting guide gives two places to change:

• Device Manager → Network adapters → right-click your Wi-Fi adapter → Properties → Power Management, then clear “Allow the computer to turn off this device to save power”.
• Control Panel → Hardware and Sound → Power Options → Change plan settings → Change advanced power settings → Wireless Adapter Settings, then set Power Saving Mode to Maximum Performance.

Update or reinstall the Wi-Fi driver. Download the latest driver for your laptop model from the manufacturer’s website. If you are not sure the driver is the problem, Microsoft suggests uninstalling the device in Device Manager with the driver removal box ticked and restarting; Windows then installs the driver again.

Reset the network settings as a last resort. On Windows, Settings → Network & internet → Advanced network settings → Network reset. On iPhone and iPad, Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings. Both remove all saved Wi-Fi networks and passwords, and the Windows reset may require reinstalling VPN software, so only do this when the simpler steps have not helped.

Phones That Leave Your Wi-Fi on Their Own

Phones are designed to stay online, and that sometimes looks like a disconnecting Wi-Fi.

They switch to another known network. If your phone has ever joined your neighbor’s guest network, a café’s Wi-Fi or an old network with the same name as yours, it may hop to it when your signal dips. Remove networks you no longer use from the list of saved networks. On iPhone you can also turn off Auto-Join for a network you never want to join automatically.

They switch to mobile data when Wi-Fi is weak. iPhone’s Wi-Fi Assist and similar features on Android move traffic to mobile data when the Wi-Fi signal is poor. That is helpful on the go, but at home it hides a weak signal instead of fixing it. If you notice your phone using mobile data at home, the real fix is a better signal in that room.

They hop between bands. Many routers broadcast 2.4 GHz and 5 GHz under one network name and steer devices between them. Older or cheaper devices sometimes handle this poorly and drop for a few seconds on every switch. As a test, give the 5 GHz band its own name in the router settings and connect the problem device to one band only. Our 2.4 GHz vs 5 GHz guide explains the trade-offs.

Drops at Certain Times or Places

Only in one room. At the edge of the router’s range, the signal falls below what the device can hold, especially on 5 GHz, which does not go through walls as well as 2.4 GHz. Moving the router to a more central, open spot often fixes this for free; how to boost your Wi-Fi signal covers placement, extenders and mesh systems.

Only when the microwave runs. Microwave ovens work at the same 2.4 GHz frequency as Wi-Fi, and an old or poorly shielded one can knock 2.4 GHz devices offline while it runs. Use 5 GHz for devices near the kitchen, or move the router away from it.

Only in the evening. Everyone in the building is streaming at the same time, so the Wi-Fi channels are busier. A less crowded channel or the 5 GHz band helps. If speeds drop even on a cable at that time, the provider’s network is congested — that is a slow connection rather than a disconnecting Wi-Fi, and our guide on why Wi-Fi is slow shows how to tell them apart.

At the same minute every day. Check the router for a scheduled reboot or a Wi-Fi schedule. Some routers can switch Wi-Fi off at night or restart on a timer, and the setting is easy to forget.

When the Router Itself Is the Problem

If you have restarted, updated and moved the router and it still drops every device, it may simply be at the end of its life. Routers that are many years old often no longer receive firmware updates, struggle with the number of devices in a modern home and run hot. A new router, or one from your provider if you rent the equipment, is the fix at that point. Our guide on how to set up a new router walks you through the replacement.

Before you buy, rule out the cheap causes once more: a loose power adapter, a damaged network cable between the modem and the router, or an unknown device flooding the network. You can see who is connected to your Wi-Fi in the router’s device list.