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How to Fix Microsoft Defender VPN Disconnects After Startup or Sleep
Question details
Users need to resolve an issue where Microsoft Defender VPN disconnects automatically and network access fails after Windows 11 starts, resumes from sleep, or shuts down.
- Product
- Microsoft Defender VPN
- Device & OS
- Windows 11
- Scenario
- Operating the system during startup or resuming from sleep mode while a VPN connection is configured.
- Observed behavior
- The VPN disconnects unexpectedly, and Windows reports no Internet access, despite other applications continuing to maintain online connectivity.
Verify that your primary Wi-Fi or Ethernet connection is stable without the VPN active, and ensure you have administrator privileges to modify system network settings.
Check VPN Profile and Network Settings
Verify your VPN configuration and prevent Windows from turning off your network adapter to save power during sleep.
Windows 11 often powers down network adapters during sleep mode, which forces active VPN connections to drop. Adjusting these settings can stabilize your network.
Navigate to Settings > Network & internet > VPN to ensure your Microsoft Defender VPN profile is correctly configured with the proper credentials.
Right-click the Start menu and select Device Manager. Expand 'Network adapters', right-click your active adapter, select 'Properties', go to the 'Power Management' tab, and uncheck 'Allow the computer to turn off this device to save power'.
Restart your computer or manually put it to sleep, then wake it up to verify if the VPN connection is maintained successfully.
Seek Assistance from Microsoft Q&A Forum
If basic network troubleshooting fails, consult Windows network specialists for targeted support.
Keep Working Offline with WPS Office
While troubleshooting VPN and network issues, do not let connectivity problems stop your productivity. WPS Office is a highly compatible, free Microsoft Office alternative that runs seamlessly on Windows 11, even when your network drops.
- 1. Download the Software: Visit the official WPS website and download the free installation package for Windows.
- 2. Install WPS Office: Run the installer and follow the on-screen prompts to set up the productivity suite on your computer.
- 3. Open Office Files: Launch WPS Office and directly open your existing Microsoft Office documents to continue editing offline.
Frequently Asked Questions
Why does my VPN disconnect when Windows 11 goes to sleep?
By default, Windows 11 may turn off network adapters to conserve battery and power during sleep mode. This abruptly disrupts the network connection, causing any active VPN session to terminate.
How do I fix the 'no Internet access' false warning?
This warning occurs when the Windows network indicator loses sync after waking from sleep. Disconnecting and manually reconnecting your VPN, or disabling and re-enabling your Wi-Fi adapter, usually refreshes the status.
Can I make Microsoft Defender VPN connect automatically on startup?
Yes, you can configure automatic connections via Windows VPN settings. However, if your network adapter initializes slowly on startup, the auto-connect attempt may fail and require manual intervention.
