Hyper V Pinging Problem

I have a physical server (DELL PE R220, Windows 2012 R2) with 2 HyperV VMs (one VM in 2012R2 and another VM in 2008R2).
From the physical server, When I PING the IP address of both VM , pings and NOT fluent and regular (at 1ms as they should be) but are VERY BAD (suddenly they go up to 20ms, 50ms and 100ms for some 10 to 20 seconds and then they go back to 1ms, and so on all the time). Normaly pings should be steady and regular at 1ms all the time

THe problem is the same when pinging both VMs

Any one has any idea what can be the problem ? ANs how to solve it?
THank you
Who is Participating?
William ArcherConnect With a Mentor TechCommented:
This will be caused by Virtual Machine Queues on the physical NIC.

Some times a drive update will sort the NICs lag issues, but if not you can all ways disable it (VMQ).

!! Changing these setting will cause network disruption !! (Few seconds)

Adapter>Properties>Configure..>Advanced> "Then find and disable "Virtual Machine Queues" from the list on the left".
Advanced adapter settings for Broadcom NetXtreme Gigabit Ethernet adapter - Virtual Machine QueuesIf you have NIC teaming you will need to do this for each physical adapter in the team.
Muhammad BurhanManager I.T.Commented:
if NIC teaming is enabled, disable any of one NIC and observe ping response
Tom CieslikIT EngineerCommented:
What about you server configuration ?
Did you dedicated separate NIC card for network switch for Hyper-V , or you're using same card for LAN and Hyper-V ?
Do you have more than one NIC available ?
If Yes I recommend create new Virtual Switch using separate network adapter and assign this switch for Virtual servers.
gadsadAuthor Commented:
thank you
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