Looking through old bug tickets... can you still reproduce this issue with the latest version of QEMU? Or could we close this ticket nowadays?
** Changed in: qemu Status: New => Incomplete -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1656927 Title: Network (TCP) access regression Status in QEMU: Incomplete Bug description: Starting a VM with /usr/bin/qemu-system-x86_64 -machine pc-i440fx-1.7,accel=kvm -usb -usbdevice tablet -usbdevice keyboard -enable-kvm -cpu core2duo -smp 2 -drive file=winp ro.qcow,index=0,media=disk,format=qcow2 -m 4096 -vga vmware -vnc :3 -k en-us -device rtl8139,netdev=nic1 -netdev user,id=nic1,smb=/data/vps/files/,hostfw d=tcp::10053-:10053,hostfwd=tcp::3387-:3389 -rtc base=utc,clock=host -daemonize in 2.5.1, all works fine in any version after 2.5.1.1, the network terminate TCP connections after a certain period . To reproduce, starts an app that use always connected TCP sockets (I am using Metatrader 4), let it run a an hour, the app does not realize the TCP is out of order but the TCP connection is closed by QEMU in 2.5.1.x, Metatrader works perfectly Thank you for your help To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1656927/+subscriptions