HP StoreOnce VSA Deployment and Configuration Guide (TC458-96024)

StoreOnce VSA on Hyper-V losing connectivity frequently
It is a known issue that virtual machines on Hyper-V may lose connectivity on the virtual network.
This has been acknowledged in the link below:
http://social.technet.microsoft.com/Forums/windowsserver/en-US/
c87623da-453c-407a-ae99-611274f16b80/vms-disconnecting-from-network?
forum=winserverhyperv
The workaround suggested by the forum is to disable VMQ on the network adaptors on the Hyper-V
hosts. Along with this, Microsoft suggests to install the hotfix 2913659 on the Windows Server
2012 R2 Hyper-V host to overcome this issue. http://support.microsoft.com/kb/2913659.
Please contact your Hyper-V network administrator for further details.
Network problems 61