Windows server loose network connection if there is heavy network load towards Hyper-V Switch.

Hi Team,

I have Windows server 2012 R2 with 6 Virtual servers. When there is heavy network load towards Hyper-V switch, host server loose network connection. I need go to and restart server by login locally to server.

When I checked event log from host server. I found event at the time of server restarted.

WAS was disconnected.
 HRESULT: -2147024787
 Process Name: SMSvcHost
 Process ID: 2016.

is this is the cause server loosing network connection.? I even cant ping to server before restarting server.

Please help me resolve this issue.