Fix Wi-Fi Keeps Disconnecting in Windows 11
Short answer: on Windows 11, the single most common cause of repeated Wi-Fi drops is the adapter's own power management putting the radio to sleep at the wrong moment, and the second most common is a driver that Windows Update quietly swapped in behind your back. Check both before you reset anything network-wide. Below is the order that actually narrows this down, plus the confirming check for each cause so you're not just trying things at random.
Is it your PC, or is it the network?
Before touching any Windows setting, find out whether the problem travels with the laptop or stays with the location. Pick up your phone and watch the same Wi-Fi network for ten or fifteen minutes while your PC is dropping. If your phone, tablet, or another laptop on the same network stays connected the whole time, the fault is almost certainly on the Windows PC its driver, its power settings, or its specific radio hardware. If everything drops together, the problem is upstream: the router, the modem, or interference in the room, and no amount of Device Manager tweaking on one laptop will fix it.
This single check saves the most time of anything in this article. Skipping it is how people end up reinstalling drivers for two hours on a laptop that was never the problem.
Why does Windows turn off my Wi-Fi adapter to save power?
By default, Windows lets the operating system power down network adapters it judges to be idle, the same way it dims a screen or spins down a hard drive. The setting is per-adapter, and it's frequently the actual cause of "it drops every few minutes" style disconnects, particularly on laptops running on battery, because Windows misjudges "idle" during things like video calls or downloads where there are gaps between bursts of traffic.
Confirm and disable it:
- Right-click Start > Device Manager > expand Network adapters
- Right-click your Wi-Fi adapter > Properties > Power Management tab
- Uncheck "Allow the computer to turn off this device to save power"
- Click OK, then restart the PC so the change fully applies
On a laptop this costs you a small amount of battery life. It's a worthwhile tradeoff for a connection that doesn't drop mid-call, and it's the first thing to rule out before you assume something more serious is wrong.
Could a Windows Update have swapped my driver without telling me?
Yes, and it's more common than people expect. Windows Update sometimes installs a generic, Microsoft-signed driver over a manufacturer's own driver, particularly for Realtek and MediaTek chipsets, and the generic version can lack proper handling of the adapter's power states and band switching which shows up as exactly this kind of intermittent drop. One user working through this on a Microsoft Q&A thread traced repeated disconnects on an HP laptop's RTL8852BE adapter to a driver Windows Update had installed; installing a different driver version from the Microsoft Update Catalog fixed it, only for it to regress weeks later when Windows silently installed yet another driver version, at which point rolling back with Device Manager's Roll Back Driver option restored stability again.
To check what you're actually running and fix it properly:
- Device Manager > Network adapters > right-click your Wi-Fi adapter > Properties > Driver tab, and note the current version and provider
- Go to your laptop manufacturer's support site (not just "search the internet for a driver") and get the driver built for your exact model
- If the manufacturer's driver doesn't help, check the Microsoft Update Catalog for alternate signed driver versions for your exact chipset, since more than one version is often published
- If a driver update makes things worse rather than better, use Device Manager's Roll Back Driver option (Properties > Driver tab > Roll Back Driver) rather than manually hunting for the old version again
Does resetting the network stack actually help?
Sometimes, but it's solving a different problem than power management or drivers, so don't reach for it first. A corrupted Winsock catalog or DNS configuration causes symptoms like "connected but no internet" or connections that hang rather than a clean, repeated drop-and-reconnect cycle. If your symptom really is Wi-Fi cleanly disconnecting and reconnecting, not degraded-but-connected behavior, this is a lower-probability cause and you should try it after the two steps above, not before:
netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdnsRun each line from an elevated Command Prompt, one at a time, and restart afterward these don't fully take effect until reboot.
Symptom, confirming check, and fix
| What you're seeing | How to confirm it | Fix |
|---|---|---|
| Drops only on this laptop; other devices on the same network stay connected | Watch a phone on the same network during a drop | Continue down this table it's a PC-side driver or power setting, not the router |
| Every device drops at the same time | Same test as above shows the phone also disconnects | Restart the router/modem; check the router's admin page for firmware updates; this article won't fix an upstream problem |
| Drops mostly during video calls, downloads, or after periods of light activity | Device Manager > Wi-Fi adapter > Power Management shows "Allow the computer to turn off this device" checked | Uncheck it, restart |
| Started right after a Windows Update, previously stable for months | Device Manager > Driver tab shows a recent install date and a generic (not vendor-named) provider | Install the manufacturer's specific driver for your model; if issues return after a future update, use Roll Back Driver rather than reinstalling from scratch each time |
| Connected but frequently shows "no internet," pages hang rather than a clean disconnect | Wi-Fi icon shows connected while browsing fails intermittently | Run the Winsock/IP reset sequence above, then flush DNS and renew the IP lease |
| Drops worse in one room or at certain times of day | Signal strength icon drops noticeably in that location, or other 2.4GHz devices (microwaves, baby monitors) are active nearby | Check the router's Wi-Fi channel for congestion and change it; this is an interference problem, not a Windows setting |
If you're running a VPN client or third-party security software, test with it temporarily disabled before you conclude the problem is purely driver or power related some VPN and antivirus network filters interfere with the adapter in ways that look identical to a driver fault.
Checklist
- Confirmed the drop is PC-specific by watching another device on the same network
- Disabled "allow the computer to turn off this device" in adapter Power Management
- Checked Device Manager for the actual driver version and provider currently installed, not just whether "Windows says it's up to date"
- Installed the manufacturer's driver for the exact model, and used Roll Back Driver rather than reinstalling manually if a future update regresses it
- Ruled out VPN or third-party security software with a quick disable-and-test
- Only run the Winsock/IP reset sequence if the symptom is connectivity failure, not a clean drop-and-reconnect cycle
If none of this resolves it and the drops persist on a wired connection as well, the fault likely isn't Wi-Fi-specific at all, and it's worth checking the router itself, or your ISP's line, as the next step.