You can try if the commercial NCP client at https://www.ncp-e.com/de/service/download-vpn-client works for you - it has been well- Experts Exchange DOWNLOAD > VPN Client For Windows - Shrew Soft Inc

Press Win + R , type services.msc , and hit Enter. Locate ShrewSoft IKE Daemon and ShrewSoft IPsec Daemon . Right-click each, change the Startup Type to Automatic , and click Start . Issue 2: "tunnel enabled" but No Traffic Passes

: Choose your authentication method. Most legacy systems use Mutual PSK (Pre-Shared Key) or Mutual RSA + XAuth .

: A free, open-source project that supports a wide range of VPN protocols and is actively maintained for modern Windows versions. Tailscale or WireGuard

: Some advanced users have bypassed network issues by manually forcing the network adapter to use an older NDIS driver, though this can lead to other hardware performance issues.

Windows 11 includes a security feature called Memory Integrity (Core Isolation) that blocks unsigned or old NDIS 5 drivers from loading. Open the Start menu and type . Toggle Memory Integrity to Off . Reboot your PC to apply this change. Verify the Adapter in Device Manager Right-click the Start button and select Device Manager . Expand the Network adapters section. Look for Shrew Soft Virtual Adapter .

Users have reported occasional Blue Screen of Death (BSOD) errors related to the Shrew Soft driver ( vpnsm.sys ) when waking from sleep or during high network throughput on Windows 11.

: Follow the standard wizard, choosing the Standard Edition unless a professional license is owned.

Are you getting a during installation or connection?

Shrew Soft - Vpn Client Windows 11 ((free))

You can try if the commercial NCP client at https://www.ncp-e.com/de/service/download-vpn-client works for you - it has been well- Experts Exchange DOWNLOAD > VPN Client For Windows - Shrew Soft Inc

Press Win + R , type services.msc , and hit Enter. Locate ShrewSoft IKE Daemon and ShrewSoft IPsec Daemon . Right-click each, change the Startup Type to Automatic , and click Start . Issue 2: "tunnel enabled" but No Traffic Passes

: Choose your authentication method. Most legacy systems use Mutual PSK (Pre-Shared Key) or Mutual RSA + XAuth . shrew soft vpn client windows 11

: A free, open-source project that supports a wide range of VPN protocols and is actively maintained for modern Windows versions. Tailscale or WireGuard

: Some advanced users have bypassed network issues by manually forcing the network adapter to use an older NDIS driver, though this can lead to other hardware performance issues. You can try if the commercial NCP client at https://www

Windows 11 includes a security feature called Memory Integrity (Core Isolation) that blocks unsigned or old NDIS 5 drivers from loading. Open the Start menu and type . Toggle Memory Integrity to Off . Reboot your PC to apply this change. Verify the Adapter in Device Manager Right-click the Start button and select Device Manager . Expand the Network adapters section. Look for Shrew Soft Virtual Adapter .

Users have reported occasional Blue Screen of Death (BSOD) errors related to the Shrew Soft driver ( vpnsm.sys ) when waking from sleep or during high network throughput on Windows 11. Issue 2: "tunnel enabled" but No Traffic Passes

: Follow the standard wizard, choosing the Standard Edition unless a professional license is owned.

Are you getting a during installation or connection?