Opensuse as router and problems of link qualityю Help me, Please.

This is My Test Enviroment:
ISP<—Ethernet<—OpenSUSE13.2<—Switch<—Win2012R2_Server

Test - check Channel Quality. Use for this: http://myspeed.visualware.com ( selec Quality Test.

This is Test Result from the OpenSUSE13.2 ( Test result - OK ! ):
https://drive.google.com/file/d/0B1V2SSlATCfNNkhqQTVTLWI1MjA/view?usp=sharing

This is test Result from the Win2012R2_Server ( Test result - Have a problems ;( ):
https://drive.google.com/file/d/0B1V2SSlATCfNMW9vN2xfU3AwTEk/view?usp=sharing

detailed:
https://drive.google.com/file/d/0B1V2SSlATCfNYzdKUXBUcGZEZUE/view?usp=sharing
https://drive.google.com/file/d/0B1V2SSlATCfNSHd3V3RNY1BQMjA/view?usp=sharing
https://drive.google.com/file/d/0B1V2SSlATCfNZXA5QThudTdSSTA/view?usp=sharing
https://drive.google.com/file/d/0B1V2SSlATCfNNlNQOGVmYkkySWc/view?usp=sharing

Please, Help me

Can you tell us, which network configurations you are using on the router (openSUSE 13.2) and on the Windows Server, please?
Which routing protocol do you use?

router:
---->Public_IP(enp3s1)____privet_IP(enp1s1=192.168.41.8)
rules:

/usr/sbin/iptables -A FORWARD -j ACCEPT
/usr/sbin/iptables -A INPUT -j ACCEPT
/usr/sbin/iptables -t nat -A POSTROUTING -o enp3s1 -s 0/0 ! -d 172.18.1.0/24 -j SNAT --to 94.45.61.10

winserver Hiper-v server=192.168.41.152

At this time problem resolved. - Disable VMQ que for Hiper-v Switch in the Windows Hiper-v server

Serg