From owner-freebsd-virtualization@freebsd.org  Mon Aug 17 13:47:12 2015
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From: Bart Derda <bede@bsd.scene.pl>
Subject: Re: FreeBSD 10.2 RC2 under Windows 10 Hyper-V
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Wei Hu <weh@...> writes:

> 
> Hi,
> 
> Does FreeBSD 10.1 on 2012R2 work in your case? If you can provide detailed
reproducible steps, I will try to
> set it up and troubleshoot in house.
> 

Hi, I have the same problem.
Yes, FreeBSD 10.1 on 2012R2 works in my case. When my kernel was upgrade
from 10.2 sources, I have problem with tcp/udp connection (for example - I
see SYN -> Syn ACK and nothing else, only again the same sequence (end with
reset).

I disabled tso/lso on my nics - not worked.
Today, I'm having mixed OS (kernel from 10.1 and system 10.2).