WiFi keeps disconnecting on Windows 11 and 10

1. Power Saving Is Killing Your Connection

This is the #1 reason WiFi drops randomly — especially on laptops. Windows 11 and 10 both have a hidden power saving feature on your WiFi adapter that cuts power to save battery. But it's aggressive. It'll drop your connection the moment you step away for 30 seconds.

Here's the fix:

1. Open Device Manager (right-click Start button).
2. Expand Network adapters.
3. Right-click your WiFi adapter (it's usually something like "Intel Wi-Fi 6 AX201" or "Realtek RTL8821CE") and select Properties.
4. Go to the Power Management tab.
5. Uncheck "Allow the computer to turn off this device to save power."
6. Click OK.

That's it. I've seen this fix work on Dell XPS 13s, Lenovo ThinkPads, and even gaming laptops. If you're on a desktop, it's less common but it still happens — check it anyway.

Pro tip: If your adapter doesn't have a Power Management tab, update the driver first (see cause #2). Older drivers hide that tab.

2. Bad WiFi Driver — The Silent Killer

Windows Update loves to push generic drivers that don't match your specific hardware. I've seen Intel AX210s and Realtek adapters act up for months after a forced update. The symptoms: WiFi works for 10 minutes, then drops, reconnects, drops again.

How to fix it:

1. Go to Device Manager > Network adapters.
2. Right-click your WiFi adapter and choose Update driver.
3. Select Browse my computer for drivers.
4. Choose Let me pick from a list of available drivers on my computer.
5. Look at the list. If you see two versions, pick the older one — seriously. The newer one might be the culprit. I've had to roll back Intel drivers from 23.10.0 to 22.20.0 on a dozen machines to stop the drops.
6. Click Next and restart.

If you only see one driver, download the driver directly from your laptop manufacturer's support site (Dell, HP, Lenovo, etc.). Never use a third-party driver updater — they cause more problems than they solve.

3. Adapter Reset and DNS Flush

This one's for when the first two don't work — and it's faster than you think. Sometimes the network stack gets corrupted or stuck. Happens a lot after a system update or VPN use.

Open Command Prompt as administrator (right-click Start > Command Prompt (Admin) or Terminal (Admin)). Run these commands one at a time, pressing Enter after each:

netsh int ip reset
netsh winsock reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns

After the last one, restart your PC. This resets your IP configuration, clears the DNS cache, and resets the Winsock catalog. I've seen this fix stubborn drops on networks that were otherwise fine for other devices.

One more thing: If you're on a 5 GHz network and the 2.4 GHz band is crowded, try switching to 5 GHz manually in your adapter settings. Go to Device Manager > adapter Properties > Advanced tab. Look for Preferred Band and set it to "Prefer 5 GHz".

Quick-Reference Summary Table

Start with cause #1 — it's the fastest and most common. If the problem comes back after a Windows update, go back to #2. You got this.