VMWare Slow Network Share Performance

I was experiencing very slow network share performance from a VMWare virtual machine to a share published on the host machine. I spent over two months trying to get this issue resolved with VMWare technical support.

After finally getting the issue escalated, one evening’s work got the issue resolved. It was as simple as just disabling the TCPIP task offload for the network adapter, using the DisableTaskOffload registry setting on the host computer.

Microsoft even posted a knowledgebase article about it, albeit for Virtual Server, not VMWare.

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