When using FreeBSD based distro’s like TrueNAS-Core or pfSense on Hyper-V network performance is very poor.
Receive Segment Coalescing (RSC) is enabled by default on all virtual NICs with Hyper-V and it should be disabled if you are experiencing poor network performance. You can do this with a quick PowerShell command.
Find out if Software RSC is enabled on your virtual NICs:
Disable Software RSC on a specific virtual NIC:
Support My Work
If you would like to support me, please check out the links below.
If you have any questions or comments please leave them below.