id summary reporter owner description type status component version resolution keywords cc guest host 9095 Slow traffic between VMs on same host Geoff Nordli "I upgraded from 3.2.12, which was working fine. Network traffic to Internet and other VMs (not on the same host) is normal. Data transfer between VMs on the same host is very, very slow ~16KB/s. I am using virtio, but have tried using an Intel Pro/1000 MT Desktop (82540EM) adapter as well. " defect closed network VirtualBox 4.0.8 obsolete Windows Linux