I350-T2 + I219V teaming in Win 10 build 14393.2214

I also have teaming problem with I350-T2 + I219V

I use win10 64-bit with build 14393.2214 (released at 17th, April) and the latest driver (Download Intel® Network Adapter Driver for Windows® 10 )

I can successfully teaming these two adapters(using intel ANS adaptive load balancing), and it works fine in normal situation.

BUT, its fail-over function doesn't work at all.

Here is how I test fail-over function:

I connect with 3 client pc and use Iperf2.0.10 to test the connection speed.

Then, I intentionally disable one adapter, theoretically, it will continue connecting with all 3 pc with a lower speed(which I saw under win8), but the result I see is connection abort (sometimes one or two of them, sometimes all) with two kinds of error message : "write failed, connection reset by peer" or "software cause connection abort".

This problem didn't happen under win8 I test couple weeks ago.

Does anyone have any idea?