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Windows Server 2025 VM Loses Network Connectivity #11957

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Windows Server 2025 VM Loses Network Connectivity#11957

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@shakibshalim74
shakibshalim74
opened on Nov 2, 2025

I am facing an issue with one of my Windows Server 2025 VMs running on a CloudStack host. The VM is configured with 20 CPU cores, 192 GB RAM, 20 TB storage, and multiple IPs assigned to a single network interface. Our CloudStack version is 4.19.3.0.

The problem is that this VM loses network connectivity after a few days. If I disable and re-enable the network interface, the connection comes back immediately.

However, another Windows Server 2025 VM created from the same ISO template works fine, and other VMs with lower CPU/RAM and a single IP do not experience this issue.

Has anyone encountered a similar issue or have suggestions on how to troubleshoot this network instability?

Activity

  1. boring-cyborg commented on Nov 2, 2025

    @boring-cyborg
    boring-cyborgBot
    on Nov 2, 2025 – with boring-cyborg

    Thanks for opening your first issue here! Be sure to follow the issue template!

  2. apache
    locked and limited conversation to collaborators on Nov 2, 2025
  3. DaanHoogland
    converted this issue into a discussion #11960 on Nov 2, 2025
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