Symptoms
Virtual machine loses network connectivity intermittentlyIn the Windows Event Viewer (Expand Windows Logs and select System), you see entries similar to: Intel(R) 82574L Gigabit Network Connection Network link is disconnected or
Intel(R) 82574L Gigabit Network Connection Network link has been established at 1Gbps full duplex
This issue would occur in these environments:
The virtual machine is Windows2012 or Windows 2012 R2The virtual machine is using E1000 or E1000E driver
Note: This issue would occur on Window server 2008 and 2008 r2 also
Cause
This issue occurs due to the driver bundled with Microsoft Windows 2012.
Resolution
This is a known issue affecting ESXi 5.x and 6.0.This issue is resolved in ESXi 5.5 patch 08 and ESXi 6.0 Update 2.
For ESXi 5.5
This issue is resolved in ESXi 5.5 Patch 08, For more information, see VMware ESXi 5.5, Patch ESXi550-201608401-BG: Updates esx-base (2144361)
For ESXi 6.0
This issue is resolved in ESXi 6.0 Update 2, available at VMware Downloads.
Workaround
To work around this issue, use VMXNET3 instead of E1000 or E1000e driver.
Related Information
To be alerted when this document is updated, click the Subscribe to Article link in the Actions box..E1000/E1000e ドライバを使用している Windows 2012 仮想マシンでネットワーク接続が失われる使用 E1000/E1000e 驱动程序的 Windows 2012 虚拟机遇到网络连接断开的问题VMware ESXi 5.5, Patch ESXi550-201608401-BG: Updates esx-base
