Windows 11 Wi-Fi Keeps Disconnecting: Causes and Fixes

If your Windows 11 Wi-Fi keeps disconnecting randomly, you’re not dealing with a minor inconvenience — dropped connections interrupt work, break video calls, and make even basic browsing frustrating.

The good news is that this problem almost always has a fixable cause. This guide walks you through every proven solution, from the simplest settings tweak to deeper driver and power management fixes.

Why Does Windows 11 Wi-Fi Keep Dropping?

Wi-Fi disconnections on Windows 11 rarely happen for just one reason. Several things can cause the same symptom.

Common causes include:

• Windows automatically turning off the Wi-Fi adapter to save power
• Outdated or corrupted Wi-Fi drivers
• A recent Windows 11 update changing network settings
• Router channel congestion or signal interference
• Incorrect DNS settings slowing or dropping connections
• The network adapter’s power management settings cutting the connection
• Windows switching between 2.4GHz and 5GHz bands unexpectedly

Knowing the cause makes the fix much faster. But if you’re not sure, work through the steps below in order.

Fix 1: Run the Built-in Network Troubleshooter

Start with the simplest option before going deeper.

Go to Settings → System → Troubleshoot → Other troubleshooters. Find Internet Connections and click Run.

Windows will scan for common network issues and attempt to fix them automatically. It won’t solve everything, but it catches obvious misconfigurations quickly.

Also run the Network Adapter troubleshooter from the same page for a more specific scan targeting your Wi-Fi hardware.

Fix 2: Disable Wi-Fi Adapter Power Management

This is the most common fix for random Wi-Fi disconnections on Windows 11 — and it’s often overlooked.

By default, Windows is allowed to turn off your Wi-Fi adapter when it thinks you’re not using it. This saves battery on laptops but causes sudden, random drops.

Here’s how to disable it:

1. Right-click the Start button → Device Manager
2. Expand Network adapters
3. Right-click your Wi-Fi adapter → Properties
4. Click the Power Management tab
5. Uncheck “Allow the computer to turn off this device to save power”
6. Click OK

Restart your PC and monitor the connection. This single change fixes the problem for a large number of users.

Fix 3: Update Your Wi-Fi Driver

An outdated or buggy Wi-Fi driver is a very common source of instability — especially after a major Windows 11 update.

Option A — Through Device Manager:

1. Right-click Start → Device Manager
2. Expand Network adapters
3. Right-click your Wi-Fi adapter → Update driver
4. Select Search automatically for drivers

Option B — From the manufacturer’s website:

This is more reliable. Find your laptop or Wi-Fi card manufacturer (Intel, Qualcomm, Realtek, MediaTek, etc.) and download the latest driver directly from their support page.

Install it, restart your PC, and test the connection.

Fix 4: Change Your Power Plan to High Performance

Windows 11’s balanced power plan aggressively manages hardware to save energy — and your Wi-Fi adapter is included in that.

Switching to High Performance tells Windows to keep all hardware fully active.

1. Open Control Panel → Power Options
2. Select High performance (you may need to click “Show additional plans” to see it)
3. Click Change plan settings → Change advanced power settings
4. Expand Wireless Adapter Settings → Power Saving Mode
5. Set it to Maximum Performance
6. Click Apply → OK

On laptops, this will use more battery — but it eliminates power-related Wi-Fi drops entirely.

Fix 5: Set a Fixed DNS Server

Sometimes the Wi-Fi connection itself is fine, but slow or unreliable DNS resolution makes it feel like the connection is dropping.

Switching to a faster, more reliable DNS server often helps.

1. Go to Settings → Network & internet → Wi-Fi
2. Click your connected network → View more properties (or click the edit icon next to DNS server)
3. Under DNS server assignment, click Edit
4. Switch from Automatic to Manual
5. Enable IPv4 and enter:
   • Preferred DNS: 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare)
   • Alternate DNS: 8.8.4.4 or 1.0.0.1
6. Click Save

Test your connection after this change. Many users report noticeably more stable connections with a fixed DNS.

Fix 6: Forget and Reconnect to the Network

A corrupted saved network profile can cause repeated drops even when your hardware and drivers are fine.

1. Go to Settings → Network & internet → Wi-Fi → Manage known networks
2. Find your network and click Forget
3. Reconnect from scratch by clicking the Wi-Fi icon in the taskbar, selecting your network, and entering your password

This clears any corrupted connection data and creates a fresh profile.

Fix 7: Disable Random Hardware MAC Address

Windows 11 has a feature that randomizes your MAC address for privacy. On some routers, this causes connection instability or repeated disconnections.

1. Go to Settings → Network & internet → Wi-Fi
2. Click the properties icon next to your network
3. Find Random hardware addresses
4. Set it to Off

Reconnect to your network and check if the drops continue.

Fix 8: Change the Wi-Fi Band or Channel

If you have a dual-band router (2.4GHz and 5GHz), Windows 11 may keep switching between bands, causing brief disconnections each time.

Check your router settings and consider:

• Separating the 2.4GHz and 5GHz networks with different SSIDs (names) so Windows can’t auto-switch
• Manually connecting to one band by joining only the 2.4GHz or 5GHz network by name

Also, router channel congestion from neighboring networks can cause instability. Log into your router’s admin panel and try switching to a less crowded channel — tools like WiFi Analyzer (free on Microsoft Store) can show you which channels are busy in your area.

Fix 9: Reset Network Settings

If multiple fixes haven’t worked, resetting your network configuration clears everything and starts fresh — including TCP/IP settings, Winsock catalog, DNS cache, and more.

Open Command Prompt as Administrator and run these commands one at a time:

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

Restart your PC after running all five commands. This is one of the most thorough network resets you can do without reinstalling Windows.

Fix 10: Roll Back or Reinstall the Wi-Fi Driver

If your Wi-Fi drops started right after a driver or Windows update, rolling back might be the fastest fix.

1. Right-click Start → Device Manager
2. Expand Network adapters
3. Right-click your Wi-Fi adapter → Properties
4. Click the Driver tab
5. If Roll Back Driver is available, click it and follow the prompts

If rollback isn’t available, try uninstalling the driver entirely:

• Right-click your adapter → Uninstall device → check “Delete the driver software for this device”
• Restart your PC — Windows will reinstall a generic driver automatically
• Then install the latest driver from the manufacturer’s website

Fix 11: Check for Windows 11 Updates (or Uninstall a Bad One)

Windows updates sometimes introduce Wi-Fi bugs — and Microsoft usually patches them within a few weeks.

Check for updates: Settings → Windows Update → Check for updates.

If the problem started right after a specific update, you can uninstall it:

1. Go to Settings → Windows Update → Update history
2. Click Uninstall updates
3. Find the recent update that caused the issue and uninstall it
4. Restart and test

Fix 12: Check Your Router

Sometimes the problem isn’t Windows at all — it’s the router.

Try these router-side checks:

• Restart your router — unplug it for 30 seconds, then plug it back in
• Check if other devices drop too — if your phone also disconnects, the issue is the router or ISP, not Windows
• Update router firmware — log into your router’s admin panel and check for firmware updates
• Check DHCP lease time — a very short DHCP lease can cause periodic reconnections as Windows re-requests an IP address

If only your Windows 11 PC drops while other devices stay connected, it’s definitely a Windows or driver issue.

Quick Troubleshooting Summary

FAQ: Windows 11 Wi-Fi Disconnecting

Why does my Wi-Fi only disconnect on Windows 11 and not on my phone?

If other devices stay connected, the problem is specific to your Windows 11 PC — most likely the Wi-Fi adapter’s power management settings or driver. Start with Fix 2 and Fix 3.

Will resetting network settings delete my saved Wi-Fi passwords?

The network reset commands in Fix 9 reset TCP/IP and DNS settings but don’t delete saved Wi-Fi passwords. Your networks will still be remembered. However, if you use Forget network in Fix 6, you will need to re-enter that network’s password.

My Wi-Fi drops exactly every hour — what causes that?

Drops at regular intervals are almost always caused by DHCP lease renewal or power management cycling. Try Fix 2 (power management) and also check your router’s DHCP lease time in its admin settings.

Does Windows 11 have a known Wi-Fi bug?

Yes — several Windows 11 updates have introduced Wi-Fi instability, particularly for Intel and Realtek adapters. Microsoft has patched most of them, but keeping Windows updated and using the latest manufacturer drivers is the best way to stay ahead of these issues.

Can a VPN cause Wi-Fi disconnections on Windows 11?

Yes. Some VPN clients interfere with network adapter settings or DNS configuration. If you use a VPN, try disabling it temporarily and testing the connection. If the drops stop, your VPN software or its settings are the cause.

Should I use 2.4GHz or 5GHz for a more stable connection?

It depends on distance. The 5GHz band is faster and less congested but has shorter range. The 2.4GHz band is slower but more stable at longer distances through walls. If you’re far from the router, 2.4GHz will usually give you a more consistent connection.

Windows 11 Wi-Fi disconnections are annoying — but every single cause on this list has a clear fix. Start with power management, update your drivers, and work through the list. Most users solve it within the first three or four steps.