[CentOS-virt] 2.6.0-28.el7_3.6.1 e1000 problem

Hello!

We tried to move Windows 2003 VM with e1000 driver from Centos 7 which 
runs qemu-kvm-0.12.1.2-2.491.el6_8.7.x86_64
to Centos 7 with qemu-kvm-ev-2.6.0-28.el7_3.6.1.x86_64 and we got problems-
tcp sessions, namely smb connections, randomly drops.

We didn't test previous qemu-rhev with this VM, so we don't know how it 
works in them.

Could you tell me is this known problem? Any workaround except switching 
to virtio?

Thank you!