How to disable TCP Offload options

[guest]

Because of network performence problems I have to disable "TCP Large Send Offload" and "TCP Checksum Offload" at the NIC of the Hyper-V manager (not at the physical NIC). I tested this at a full installation and it seems to help. But I plan to use the Core installation.

How to disable the TCP Offload [...] there without the device manager (which is not available at the core installation (a grate function, really...))?

[guest]

These settings are not at this place. They are saved at "HKLM\System\CurrentControlSet\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}\00<Index>

- Ip4IpChecksum

- Ip4TcpChecksum

- Ip4TcpLsoV1



--> http://msdn.microsoft.com/en-us/library/aa938424.aspx



Changing these values showed the expected effects.