Quick answer: Run netsh winsock reset and netsh int ip reset in an elevated Command Prompt, then restart your network adapter. That clears the stale connection state in 90% of cases.
I know this error is infuriating. You're mid-something, maybe on a VPN or just using your home Wi-Fi, and suddenly Windows decides the connection you're actively using is already disconnected. The 0x80000025 code is the kernel's way of saying "I've already torn this down, stop trying to use it." It's a race condition — the OS thinks the connection is dead, but your apps or the network stack still hold a reference to it.
This typically happens after a network adapter driver update, when you switch between Wi-Fi and Ethernet quickly, or when a VPN client fails to clean up after disconnecting. I've seen it most on Windows 10 with the built-in VPN client and on Windows 11 after sleep/resume cycles.
Here's how I fix it, step by step.
- Restart the network adapter. Press
Win + X, open Device Manager, find your Wi-Fi or Ethernet adapter under Network adapters, right-click it, choose Disable device, wait 5 seconds, then Enable device. This forces the driver to reset its state. Windows will reconnect automatically. - Flush the network stack. Open Command Prompt as administrator (type
cmdin Start, right-click, Run as administrator). Then run these two commands:
netsh winsock reset
netsh int ip resetReboot after that. It's heavy-handed but it clears all cached socket states and IP configuration. This fixes the stale connection issue at the root.
- Reset the VPN service. If you were on a VPN, open Services (type
services.msc), find RasMan (Remote Access Connection Manager), right-click, and Restart. This is the service that manages VPN and dial-up connections. It often gets stuck holding a dead connection. - Check for driver updates. Go back to Device Manager, right-click your adapter, select Update driver, then Search automatically. If that finds nothing, check your laptop manufacturer's site for the latest driver. I've seen Realtek and Intel Wi-Fi drivers cause this when they're out of date.
If those steps don't work
Sometimes the standard fixes fall short. Here's what I'd try next.
Release and renew your IP address
Open Command Prompt as admin and run:
ipconfig /release
ipconfig /renewThis gets you a fresh IP from the router, which can clear out the ghost connection.
Disable IPv6 temporarily
IPv6 can cause weird disconnections with some routers. Right-click your network icon, Open Network & Internet settings, click Change adapter options, right-click your adapter, Properties, uncheck Internet Protocol Version 6 (TCP/IPv6), and click OK. If the error stops, IPv6 is your culprit. Leave it off if you don't rely on it.
Use Windows Network Diagnostics
If you're not in a hurry, right-click the network icon in the taskbar, select Troubleshoot problems. It's a long shot, but occasionally it resets the right thing automatically. Skip it if you've already tried the manual fixes.
Prevention tips
To keep this from coming back:
- Update your network drivers monthly. The bug usually gets patched, but only if you install the fix.
- If you use a VPN, always disconnect through the VPN client — don't just close the app. That orphaned connection is what triggers 0x80000025.
- Don't switch between Wi-Fi and Ethernet while a VPN is active. It's like pulling a USB stick without ejecting — it leaves junk behind.
One more thing: if the error pops up consistently at the same time of day, it might be a power management feature. Go to Device Manager, your adapter's Properties, Power Management tab, and uncheck Allow the computer to turn off this device to save power. That setting is the root cause for a lot of intermittent disconnection errors.
That should cover it. If you're still stuck after all this, check the Event Viewer for the exact time and source of the error — search under Windows Logs > System for the timestamp. That'll tell you if it's a driver fault or something else. But honestly, the reset commands fix this for most people. Give them a shot first.