id summary reporter owner description type status component version resolution keywords cc guest host 4552 Virtual machine fails to start with bridged networking if there is one already running David Gutzmann "I have a bridged setup with 3 identical machines utilizing bridged networking, linux software bridges and tap interfaces. The first machine just starts fine but the second one fails to start every time. This was not a problem with 2.2.4. The error message says: Failed to start the virtual machine Testbed-aFirstTest-vb1. Failed to open/create the internal network 'HostInterfaceNetworking-vb1_ch0' (VERR_INTNET_INCOMPATIBLE_TRUNK). Unknown error creating VM (VERR_INTNET_INCOMPATIBLE_TRUNK). Tap interfaces are named vb0_ch0, vb1_ch0 and vb2_0. " defect closed network VirtualBox 3.0.2 obsolete Linux Linux