Hello,
Ensure that the Hyper-V integration service is installed and enabled on the Windows Server 2008 virtual machine. Hyper-V Integration services are a set of enhancements that enable virtual machines to better interact with Hyper-V hosts. You can use it to install drivers for virtual machines.
Hyper-V virtual machines typically use Hyper-V network adapters, but Windows Server 2008 May not support the latest Hyper-V network adapter drivers, and you may need to look for older versions of drivers for that operating system (if available).
I hope the information above is helpful.
Best regards
Zunhui
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