Really poor network performance in Windows 7 guest on

Hyper-V Synthetic Network Interface Card Reinitializes on The default network adapter on all VMs created in Hyper-V is a synthetic network adapter, whose driver is included with the Integration Components. However, the synthetic network adapter cannot be used, as its software driver does not load until the Integration Services are installed in the VM. Hyper-V network adapter differences - TechGenix Dec 31, 2011

A Hyper-V extensible switch Ethernet adapter that is exposed in the guest operating system that runs in a Hyper-V child partition. A synthetic network adapter is a type of VM network adapter. The network virtual service client (NetVSC) that runs in the VM exposes this synthetic network adapter.

Feb 23, 2017

HyperV - Adding Network Adapter - PowerShell General - Ask

Feb 11, 2018 · So is support for it under Hyper-V. It might work under 2008 Hyper-V, I wouldn't hold my breath for 2016. That said, the problems you're having are almost certainly because of integration services and drivers not being supported. Network Adapter is a synthetic network adapter that requires working integration services. Hyper V supports synthetic and emulated network adapters in the virtual machines, but the synthetic devices offer significantly better performance and reduced CPU overhead. Each network adapter in a virtual machine can be connected to a virtual network switch, which can be attached to a physical network adapter if external network connectivity If that describes your network, you will need to design your Hyper-V hosts to match. If your physical network doesn’t use VLANs, then don’t worry about them on your Hyper-V hosts. Do not create one Hyper-V virtual switch per VLAN the way that you configure ESXi. Every Hyper-V virtual switch automatically supports untagged frames and VLANs 1