Recommended hotfixes, updates, and known solutions for Windows Server 2012 R2 Hyper-V Network Virtualization (HNV) environments

This article documents recommended hotfixes, product updates, and known solutions that are currently available for Windows Server 2012 R2 Hyper-V Network Virtualization (HNV) environments. The updates are listed by the operating system to which they apply.

Applies to:   Windows Server 2012 R2
Original KB number:   2974503

Windows Server 2012 R2

Date added Knowledge Base article Title
June 11, 2014 2953218 A connection request fails for some NAT instances in Windows Server 2012 R2
June 11, 2014 2956241 Network communication is very slow in a virtual machine that has the LSO feature of Hyper-V Network Virtualization enabled
June 11, 2014 2965178 VMQs cannot be created or the NVGRE offload incorrectly on a Windows 8.1 or Windows Server 2012 R2-based Hyper-V
June 12, 2014 2918813 Windows Server 2012 R2 NVGRE gateway cannot establish outgoing connections
June 12, 2014 2913659 Windows Server 2012 R2-based Hyper-V server crashes when network traffic passes through a virtual switch
June 12, 2014 2965740 0x000000D6 Stop error when a VM network adapter is uninstalled in Windows 8.1 or Windows Server 2012 R2
June 12, 2014 2965733 The guest cluster is not available to service users after failover in a Hyper-V Network Virtualization environment
June 12, 2014 2965736 Stop error or inconsistent behavior across unrelated components in Windows Server 2012 R2
June 12, 2014 2965739 NICs disappear and vSwitch becomes private in Windows Server 2012 R2
June 17, 2014 2964814 Virtual machine network fails when you start the second VM on a Windows Server 2012 R2-based Hyper-V server
August 7, 2014 2967917 July 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
September 3, 2014 2973047 VLAN tagging breaks the VM connection with a third-party forwarding extension and HNV in Windows Server2012 R2
September 3, 2014 2979957 Memory usage of Wmiprvse.exe keeps increasing when you run an application or script in Windows
September 3, 2014 2975719 August 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
December 5, 2014 3000850 November 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
March 20, 2015 3031598 Hyper-V host crashes and has errors when you perform a VM live migration in Windows 8.1 and Windows Server 2012 R2
May 13, 2015 3049448 Resolution of external DNS records on a Windows Server 2012 R2 Hyper-V guest cluster fails through a Hyper-V Network Virtualization Gateway
May 13, 2015 3047280 "The URL cannot be resolved" error in DirectAccess and routing failure on HNV gateway cluster in Windows Server 2012 R2
June 11, 2015 3049443 Live migration of virtual machine to another host fails on a Windows Server 2012 R2-based Hyper-V host server
June 26, 2015 3044457 "STATUS_PURGE_FAILED" error occurs in Windows Server 2012 R2
August 11, 2015 3078411 Tenant VMs lose network connectivity if NAT gateway VM exhausts all TCP/IP ephemeral ports in Windows Server 2012 R2
November 4, 2015 3091402 Site-to-site VPN goes down in Windows 8.1 or Windows Server 2012 R2
April 12, 2016 3139164 Tracert command doesn't receive responses when you trace resources on Internet through Windows Server 2012 R2 HNV GW

Microsoft System Center 2012 R2 Virtual Machine Manager (VMM)

Date added Knowledge Base article Title
June 11, 2014 2932926 Description of Update Rollup 2 for System Center 2012 R2 Virtual Machine Manager
August 7, 2014 2965414 Update rollup 3 for System Center 2012 R2 Virtual Machine Manager
December 5, 2014 2992024 Update Rollup 4 for System Center 2012 R2 Virtual Machine Manager
May 13, 2015 3023195 Description of the security update for Update Rollup 5 for System Center 2012 R2 Virtual Machine Manager
May 13, 2015 3050317 Update Rollup 6 for System Center 2012 R2 Virtual Machine Manager
July 28, 2015 3066340 Update Rollup 7 for System Center 2012 R2 Virtual Machine Manager
November 2, 2015 3096389 Update Rollup 8 for System Center 2012 R2 Virtual Machine Manager
February 13, 2016 3129784 Update Rollup 9 for System Center 2012 R2 Virtual Machine Manager

Other known issues and solutions

Date added Knowledge Base article Title
June 11, 2014 2902166 Poor network performance on virtual machines on a Windows Server 2012 Hyper-V host if VMQ is enabled
May 13, 2015 2986895 Virtual machines lose network connectivity when you use Broadcom NetXtreme 1-gigabit network adapters
January 12, 2016 3135020 Recommended hotfixes, updates, and known solutions for Windows Server 2012 R2 Hyper-V environments