Windows Virtual machine loses vmxnet3 network settings after reboot
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Windows Virtual machine loses vmxnet3 network settings after reboot

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Article ID: 417273

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Updated On:

Products

VMware vSphere ESXi

Issue/Introduction

  • Windows VM loses network configuration after reboot

  • In vmware.log located at /vmfs/volumes/<VM folder>/ on ESX host has below entries
    YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - Ethernet0 MAC Address: ##:##:##:##:##:##
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - VMXNET3 user: Ethernet0 RSS fields requested by vmx: 3
YYYY-MM-DDTHH:MM:SS In(05) vcpu-1 - CPU reset: soft (mode Emulation)
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - Guest: Driver=vmxnet3, Version=1.9.20.0
YYYY-MM-DDTHH:MM:SS In(05) vcpu-1 - Ethernet0 MAC Address:  ##:##:##:##:##:##
YYYY-MM-DDTHH:MM:SS In(05) vcpu-1 - VMXNET3 user: Activate device 0.
YYYY-MM-DDTHH:MM:SS In(05) vcpu-1 - VMXNET3 user: Ethernet0 Driver Info: version = 24409624 gosBits = 2 gosType = 2, gosVer = 40960, gosMisc = 212
YYYY-MM-DDTHH:MM:SS In(05) vcpu-1 - VMXNET3 user: Activate request succeeds for device 0


  • In /var/run/log/vmkernel.log on ESX, there is no issues with NIC activation/enablement
    YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu27:2105561)NetPort: 1887: disabled port 0x4000064
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)Vmxnet3: 14920: indLROPktToGuest: 1, vcd->umkShared->vrrsSelected: 3 port 0x4000064
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)Vmxnet3: 15304: Using default queue delivery for vmxnet3 for port 0x4000064
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)NetPort: 3130: resuming traffic on DV port 194
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)cswitch: L2Sec_SetPolicy:510: [nsx@6876 comp="nsx-esx" subcomp="vswitch"]Updating L2Sec policy for port 0x4000064 - 7
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)cswitch: VSwitchPortEthFRPUpdateInt:5829: [nsx@6876 comp="nsx-esx" subcomp="vswitch"]Unblock Port 67108964
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)NetDVS: 9695: Property com.vmware.vswitch.port.macLearningStats, propType=0x20 (0x20), skip update for port 194
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)NetPort: 1618: enabled port 0x4000064 with mac  ##:##:##:##:##:##
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)NetPort: 1887: disabled port 0x4000064
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)Vmxnet3: 14920: indLROPktToGuest: 1, vcd->umkShared->vrrsSelected: 3 port 0x4000064
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)Vmxnet3: 15304: Using default queue delivery for vmxnet3 for port 0x4000064
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)NetPort: 3130: resuming traffic on DV port 194
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)cswitch: VSwitchPortEthFRPUpdateInt:5829: [nsx@6876 comp="nsx-esx" subcomp="vswitch"]Unblock Port 67108964
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)NetDVS: 9695: Property com.vmware.vswitch.port.macLearningStats, propType=0x20 (0x20), skip update for port 194
YYYY-MM-DDTHH:MM:SS In(182) vmkernel: cpu3:2105561)NetPort: 1618: enabled port 0x4000064 with mac  ##:##:##:##:##:##

Environment

  • ESXi 8.x
  • ESX 9.x

Cause

vmxnet3 adapter or the VMtools is not causing this issue but others factors can be causing this issue which requires Microsoft investigation

Resolution

Contact Microsoft for further investigation along with Windows event logs, other guest OS related logs.

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