Hello Qemu don't wait tap infrastructure on windows 10 enough on two consecutive calls Please observe that only second asincron qemu call works I have next situation: F:\20241105>dir Volume in drive F is Data2 Volume Serial Number is 9A3F-2B31 Directory of F:\20241105 11/05/2024 12:29 PM <DIR> . 11/05/2024 12:29 PM <DIR> .. 11/05/2024 12:13 PM 656 a.bat 11/05/2024 12:27 PM 442,355,200 d.qcow2 11/05/2024 12:27 PM 442,355,200 dd.qcow2 11/05/2024 12:27 PM 442,355,200 debian-12-generic-amd64.qcow2 4 File(s) 1,327,066,256 bytes 2 Dir(s) 40,295,374,848 bytes free F:\20241105>ver Microsoft Windows [Version 10.0.19045.5011] F:\20241105>netsh interface show interface Admin State State Type Interface Name ------------------------------------------------------------------------- Enabled Disconnected Dedicated reteavirtuala247 Enabled Connected Dedicated retealoopback Disabled Disconnected Dedicated Bluetooth Network Connection Enabled Connected Dedicated Ethernet F:\20241105>C:\progra~1\qemu\qemu-system-x86_64.exe --version QEMU emulator version 9.1.0 (v9.1.0-12064-gc658eebf44) Copyright (c) 2003-2024 Fabrice Bellard and the QEMU Project developers F:\20241105>type a.bat @echo off echo =============1================= set "QEMUBIN=C:\progra~1\qemu\qemu-system-x86_64.exe" echo =============2================= start "" /b "%QEMUBIN%" -m 512 -hda d.qcow2 -name vm ^ -device virtio-net,netdev=n1 -netdev user,id=n1 ^ -device virtio-net,netdev=n2,mac=52:54:00:12:34:56 ^ -netdev tap,id=n2,ifname=reteavirtuala247 echo =============3================= start "" /b "%QEMUBIN%" -m 512 -hda dd.qcow2 -name vmm ^ -device virtio-net,netdev=nn1 -netdev user,id=nn1 ^ -device virtio-net,netdev=nn2,mac=52:54:00:12:34:76 ^ -netdev tap,id=nn2,ifname=reteavirtuala247 echo =============4================= F:\20241105>a.bat =============1================= =============2================= =============3================= =============4================= F:\20241105>tap: Could not open 'reteavirtuala247' C:\progra~1\qemu\qemu-system-x86_64.exe: -netdev tap,id=n2,ifname=reteavirtuala247: Device 'tap' could not be initialized
(qemu:11840): Gtk-WARNING **: 12:46:38.685: Could not load a pixbuf from icon theme. This may indicate that pixbuf loaders or the mime database could not be found.