Troubleshooting
Problem
The VMXNET virtual NIC adapters do not support the Windows® TCP Chimney option.
Environment
VMs on ESX(i) 4.x, 5.0, 5.1, 5.5
Resolving The Problem
Windows 2008 by default has the TCP chimney feature enabled. In some cases the vnic connectivity can be more stable by disabling this feature within an ESX/ESXi VM at version 4.x and higher. This occurs because the VMXNET virtual adapters do not support TCP chimney option.
Within the Windows VM run the CMD command:
netsh int tcp set global chimney=disabled
This is also covered in VMware® KB:
http://kb.vmware.com/kb/1009517
Within the Windows VM run the CMD command:
netsh int tcp set global chimney=disabled
This is also covered in VMware® KB:
http://kb.vmware.com/kb/1009517
Related Information
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Document Information
Modified date:
27 February 2020
UID
isg3T1012648