: It often conflicts with modern Windows features like Hyper-V and Core Isolation , which must frequently be disabled for the simulator to work.
| Error Code | Message | Solution | | :--- | :--- | :--- | | | "VirtualBox host network interface not found" | Open VirtualBox > File > Host Network Manager. Delete all host-only networks (#0, #1). Click "Create" to make "VirtualBox Host-Only Ethernet Adapter #2". Then in eNSP > Settings > Tools, map it to #2. | | Error 41 | "Failed to start AR_Base" | VirtualBox version mismatch. Uninstall VirtualBox (keep VMs), reboot, install 5.2.44. Also check BIOS for VT-x enablement. | | 41 (AR startup) | "AR shows ##### in console" | WinPcap is corrupted. Uninstall WinPcap + Npcap. Reinstall WinPcap 4.1.3. Reboot. Clear eNSP topology cache. | | Server Auth Failed | "Connect to server failed" | The legacy registration server is dead. Use the "Offline Registration" trick (see Phase 3). Or use ensp.cloud workaround by editing hosts file to 127.0.0.1. | | Win10/11 Crashes | eNSP closes on dragging device | Run eNSP in Windows 7 Compatibility Mode . Right-click eNSP icon > Properties > Compatibility > Windows 7. | Huawei Ensp Download
