KB5005568 is breaking my network adaptor

Juan de Villiers 1 Reputation point
2021-10-05T18:44:38.357+00:00

After doing the kb5005568 update, my DC network adaptor still has all the same settings as before but is unable to communicate with the network. It can connect to and identify the domain network name but can't ping anything on the network nor be pinged from any device on the network. When switching to DHCP, the IP addresses switch the the failover linked local IP address range even though the network has a DHCP server on it. Rolling back the update allows connectivity again.

The server is a 2019 Server and is hosted on a 2012 HyperV Server.

I would like to apply the update since it is marked critical. Anything I can check or possible solutions?

Thanks,
Juan

Windows Server 2019
Windows Server 2019
A Microsoft server operating system that supports enterprise-level management updated to data storage.
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  1. Anonymous
    2021-10-05T20:43:11.703+00:00

    I'd start by checking here and with manufacturer that the hardware supports Server 2019
    https://www.windowsservercatalog.com/

    might also check the manufacturer's site for the latest firmware, ROM bios, chipset and driver support pack.

    --please don't forget to upvote and Accept as answer if the reply is helpful--


  2. Limitless Technology 39,506 Reputation points
    2021-10-06T12:54:51.873+00:00

    Hello @Juan de Villiers

    I think this issue has been already discussed here:

    https://learn.microsoft.com/en-us/answers/questions/538132/no-network-access-for-one-vm-6-running-fine-hyper.html

    For more information:

    Virtual machines lose network connectivity when you use Broadcom NetXtreme 1-gigabit network adapters
    https://learn.microsoft.com/en-US/troubleshoot/windows-server/networking/vm-lose-network-connectivity-broadcom

    -------------

    --If the reply is helpful, please Upvote and Accept as answer--

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  3. Akram Moukhtar 1 Reputation point
    2021-10-11T06:26:43.747+00:00

    same issue here ,i have to uninstall this update ,or go back to one day ago backup

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