Fields #

Message #

[VMID %3] %1

Fields #

Fields #

Message #

[VMID %3] %1

Fields #

Fields #

Message #

[VMID %3] %1

Fields #

Fields #

Message #

[VMID %3] %1

Fields #

Description

'VmName' Static MAC address MacAddress for "NicName" (NicGuid) is invalid.

Fields #

Description

'VmName' Static MAC address MacAddress for "NicName" (NicGuid) is invalid.

Message #

'%1' Static MAC address %5 for "%4" (%3) is invalid.

Fields #

Description

'VmName' Static MAC address MacAddress for "NicName" (NicGuid) conflicts with another adapter.

Fields #

Description

'VmName' Static MAC address MacAddress for "NicName" (NicGuid) conflicts with another adapter.

Message #

'%1' Static MAC address %5 for "%4" (%3) conflicts with another adapter.

Fields #

Description

'VmName' No available MAC address for "NicName".

Fields #

Description

'VmName' No available MAC address for "NicName".

Message #

'%1' No available MAC address for "%4".

Fields #

Fields #

Message #

'%1' Dynamic MAC address for "%4" (%3) was not assigned.  The virtual machine will not have network connectivity until this problem is resolved. To assign a new MAC address, restart the virtual machine.

Fields #

Description

'VmName' Dynamic MAC address MacAddress for NicName (NicGuid) is invalid.

Fields #

Description

'VmName' Dynamic MAC address MacAddress for NicName (NicGuid) is invalid.

Message #

'%1' Dynamic MAC address %5 for %4 (%3) is invalid.

Fields #

Description

Dynamic MAC address for () is invalid.

Fields #

Description

Dynamic MAC address MacAddress for NicName (NicGuid) is invalid.

Message #

Dynamic MAC address %5 for %4 (%3) is invalid.

Fields #

Description

'VmName' NicName (NicGuid) started successfully. (Virtual Machine ID VmId).

Fields #

Description

'VmNicNoAvailableMac.VmName' VmNicNoAvailableMac.NicName (VmNicNoAvailableMac.NicGuid) started successfully. (Virtual Machine ID VmNicNoAvailableMac.VmId).

Message #

'%1' %4 (%3) started successfully. (Virtual Machine ID %2)

Fields #

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Hyper-V-SynthNic",
    "guid": "C29C4FB7-B60E-4FFF-9AF9-CF21F9B09A34",
    "event_source_name": "",
    "event_id": 12582,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": 9223372036854775808,
    "time_created": "2026-03-11T06:32:02.482486+00:00",
    "event_record_id": 12,
    "correlation": {
      "ActivityID": "F0567312-CB60-43FE-9013-B91DE669B588"
    },
    "execution": {
      "process_id": 9436,
      "thread_id": 10020
    },
    "channel": "Microsoft-Windows-Hyper-V-Worker-Admin",
    "computer": "LAB-WIN11",
    "security": {
      "user_id": "S-1-5-83-1-698845485-1245677379-4261864325-3027728797"
    }
  },
  "user_data": {
    "VmNicNoAvailableMac": {
      "VmName": "29A7892D-8743-4A3F-85E3-06FE9D7977B4",
      "VmId": "29A7892D-8743-4A3F-85E3-06FE9D7977B4",
      "NicGuid": "AD2366C4-0BE2-4636-8124-F3BDDFD27E15",
      "NicName": null
    }
  },
  "message": ""
}

Description

'VmName' NicName (NicGuid) started successfully. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) started successfully. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) started successfully. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) allocated a virtual function. (Virtual Function ID VfId LUID PfLuid Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) allocated a virtual function. (Virtual Function ID VfId LUID PfLuid Virtual Machine ID VmId).

Message #

'%1' %4 (%3) allocated a virtual function. (Virtual Function ID %5 LUID %6 Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) failed to allocate a virtual function: ErrorCodeString (ErrorCode): IOV networking might be incompatible with other configured networking features. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) failed to allocate a virtual function: ErrorCodeString (ErrorCode): IOV networking might be incompatible with other configured networking features. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) failed to allocate a virtual function: %7 (%8): IOV networking might be incompatible with other configured networking features. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) freed a virtual function. (Virtual Function ID VfId Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) freed a virtual function. (Virtual Function ID VfId Virtual Machine ID VmId).

Message #

'%1' %4 (%3) freed a virtual function. (Virtual Function ID %5 Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) failed to free a virtual function: ErrorCodeString (ErrorCode) (Virtual Function ID VfId Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) failed to free a virtual function: ErrorCodeString (ErrorCode) (Virtual Function ID VfId Virtual Machine ID VmId).

Message #

'%1' %4 (%3) failed to free a virtual function: %7 (%8) (Virtual Function ID %5 Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) assigned a virtual function. (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) assigned a virtual function. (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) assigned a virtual function. (Virtual Function ID %5 LUID %6) (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) failed to assign a virtual function: ErrorCodeString (ErrorCode) (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) failed to assign a virtual function: ErrorCodeString (ErrorCode) (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) failed to assign a virtual function: %7 (%8) (Virtual Function ID %5 LUID %6) (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) unassigned a virtual function. (Virtual Function ID VfId Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) unassigned a virtual function. (Virtual Function ID VfId Virtual Machine ID VmId).

Message #

'%1' %4 (%3) unassigned a virtual function. (Virtual Function ID %5 Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) Connected to virtual network. (Virtual Machine ID VmId).

Fields #

Description

'VmNicNoAvailableMac.VmName' VmNicNoAvailableMac.NicName (VmNicNoAvailableMac.NicGuid) Connected to virtual network. (Virtual Machine ID VmNicNoAvailableMac.VmId).

Message #

'%1' %4 (%3) Connected to virtual network. (Virtual Machine ID %2)

Fields #

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Hyper-V-SynthNic",
    "guid": "C29C4FB7-B60E-4FFF-9AF9-CF21F9B09A34",
    "event_source_name": "",
    "event_id": 12597,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": 9223372036854775808,
    "time_created": "2026-03-11T06:32:02.482454+00:00",
    "event_record_id": 11,
    "correlation": {
      "ActivityID": "F0567312-CB60-43FE-9013-B91DE669B588"
    },
    "execution": {
      "process_id": 9436,
      "thread_id": 10020
    },
    "channel": "Microsoft-Windows-Hyper-V-Worker-Admin",
    "computer": "LAB-WIN11",
    "security": {
      "user_id": "S-1-5-83-1-698845485-1245677379-4261864325-3027728797"
    }
  },
  "user_data": {
    "VmNicNoAvailableMac": {
      "VmName": "29A7892D-8743-4A3F-85E3-06FE9D7977B4",
      "VmId": "29A7892D-8743-4A3F-85E3-06FE9D7977B4",
      "NicGuid": "29A7892D-8743-4A3F-85E3-06FE9D7977B4--AD2366C4-0BE2-4636-8124-F3BDDFD27E15",
      "NicName": null
    }
  },
  "message": ""
}

Description

'VmName' NicName (NicGuid) Disconnected from virtual network. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) Disconnected from virtual network. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) Disconnected from virtual network. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) Smart Paging now inactive. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) Smart Paging now inactive. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) Smart Paging now inactive. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) Smart Paging now active. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) Smart Paging now active. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) Smart Paging now active. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) is configured to use SR-IOV but that capability is not supported on this version of Windows. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) is configured to use SR-IOV but that capability is not supported on this version of Windows. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) is configured to use SR-IOV but that capability is not supported on this version of Windows. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) is configured to use SR-IOV but this system does not have an IOMMU or the IOMMU is currently disabled. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) is configured to use SR-IOV but this system does not have an IOMMU or the IOMMU is currently disabled. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) is configured to use SR-IOV but this system does not have an IOMMU or the IOMMU is currently disabled. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) is configured to use SR-IOV but that capability is disabled by policy on this machine. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) is configured to use SR-IOV but that capability is disabled by policy on this machine. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) is configured to use SR-IOV but that capability is disabled by policy on this machine. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) failed to allocate a virtual function because the switch to which the virtual NIC is connected to is not in SR-IOV mode. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) failed to allocate a virtual function because the switch to which the virtual NIC is connected to is not in SR-IOV mode. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) failed to allocate a virtual function because the switch to which the virtual NIC is connected to is not in SR-IOV mode. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) failed to allocate a virtual function because the physical NIC does not support SR-IOV. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) failed to allocate a virtual function because the physical NIC does not support SR-IOV. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) failed to allocate a virtual function because the physical NIC does not support SR-IOV. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) unassigning a virtual function because of an invalid DMA operation by the guest operating system. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) unassigning a virtual function because of an invalid DMA operation by the guest operating system. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) unassigning a virtual function because of an invalid DMA operation by the guest operating system. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) The number of queue pairs allocated to the virtual function (VfId) were less than requested (PfLuid). (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) The number of queue pairs allocated to the virtual function (VfId) were less than requested (PfLuid). (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) The number of queue pairs allocated to the virtual function (%5) were less than requested (%6). (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) The number of queue pairs to be allocated (VfId) were limited because of the number of virtual processors (PfLuid) for the VM. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) The number of queue pairs to be allocated (VfId) were limited because of the number of virtual processors (PfLuid) for the VM. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) The number of queue pairs to be allocated (%5) were limited because of the number of virtual processors (%6) for the VM. (Virtual Machine ID %2)

Fields #

Description

The device naming setting only applies to synthetic network adapters on Generation 2 virtual machines with configuration version 6.2 or above. (Virtual machine ID ).

Fields #

Description

The device naming setting only applies to synthetic network adapters on Generation 2 virtual machines with configuration version 6.2 or above. (Virtual machine ID VmId).

Message #

The device naming setting only applies to synthetic network adapters on Generation 2 virtual machines with configuration version 6.2 or above. (Virtual machine ID %1)

Fields #

Description

'VmName' failed to allocate resources while connecting to a virtual network: ErrorCodeString (ErrorCode) (Virtual Machine ID VmId). The Ethernet switch may not exist.

Fields #

Description

'VmName' failed to allocate resources while connecting to a virtual network: ErrorCodeString (ErrorCode) (Virtual Machine ID VmId). The Ethernet switch may not exist.

Message #

'%1' failed to allocate resources while connecting to a virtual network: %4 (%5) (Virtual Machine ID %2). The Ethernet switch may not exist.

Fields #

Description

Failed to allocate resources while connecting to a virtual network. The Ethernet switch may not exist.

Fields #

Description

Failed to allocate resources while connecting to a virtual network. The Ethernet switch may not exist.

Message #

Failed to allocate resources while connecting to a virtual network. The Ethernet switch may not exist.

Fields #

Description

'VmName' The VirtualSystemIdentifier VmId for "NicName" (NicGuid) conflicts with another adapter.

Fields #

Description

'VmName' The VirtualSystemIdentifier VmId for "NicName" (NicGuid) conflicts with another adapter.

Message #

'%1' The VirtualSystemIdentifier %2 for "%4" (%3) conflicts with another adapter.

Fields #

Fields #

Message #

Bytes sent or received by '%1' is larger than what can fit inside of a 64-bit integer. Record and then reset the metric value in order to continue measuring the number of bytes send or received. (Virtual Machine ID %2)

Fields #

Description

Bytes send or received is larger than what can fit inside of an unsigned 64-bit integer.

Fields #

Description

Bytes send or received is larger than what can fit inside of an unsigned 64-bit integer.

Message #

Bytes send or received is larger than what can fit inside of an unsigned 64-bit integer.

Fields #

Description

'VmName' NicName (NicGuid) Pause failed. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) Pause failed. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) Pause failed. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) ShutDown failed. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) ShutDown failed. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) ShutDown failed. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) VMPhu Zero start sequence failed. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) VMPhu Zero start sequence failed. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) VMPhu Zero start sequence failed. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) VMPhu Zero start sequence succeeded. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) VMPhu Zero start sequence succeeded. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) VMPhu Zero start sequence succeeded. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) Save failed. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) Save failed. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) Save failed. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) PowerOn failed. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) PowerOn failed. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) PowerOn failed. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) Restore failed. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) Restore failed. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) Restore failed. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) Resume failed. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) Resume failed. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) Resume failed. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) VMPhu Zero complete sequence failed. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) VMPhu Zero complete sequence failed. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) VMPhu Zero complete sequence failed. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) VMPhu Zero complete sequence succeeded. (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) VMPhu Zero complete sequence succeeded. (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) VMPhu Zero complete sequence succeeded. (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) successfully saved the keep alive virtual function. (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) successfully saved the keep alive virtual function. (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) successfully saved the keep alive virtual function. (Virtual Function ID %5 LUID %6) (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) successfully assigned the keep alive virtual function. (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) successfully assigned the keep alive virtual function. (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) successfully assigned the keep alive virtual function. (Virtual Function ID %5 LUID %6) (Virtual Machine ID %2)

Fields #

Description

'VmName' NicName (NicGuid) failed to assign the keep alive virtual function: ErrorCodeString (ErrorCode) (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Fields #

Description

'VmName' NicName (NicGuid) failed to assign the keep alive virtual function: ErrorCodeString (ErrorCode) (Virtual Function ID VfId LUID PfLuid) (Virtual Machine ID VmId).

Message #

'%1' %4 (%3) failed to assign the keep alive virtual function: %7 (%8) (Virtual Function ID %5 LUID %6) (Virtual Machine ID %2)

Fields #

Description

Started Allocating VF on Nic (Name: ). (Virtual machine ID ).

Fields #

Description

Started Allocating VF on Nic (Name: Parameter0). (Virtual machine ID VmId).

Message #

Started Allocating VF on Nic (Name: %2). (Virtual machine ID %1)

Fields #

Description

Finished Allocating VF (VFID: ) on Nic (Name: ), time s. (Virtual machine ID ).

Fields #

Description

Finished Allocating VF (VFID: Parameter1) on Nic (Name: Parameter0), time Time s. (Virtual machine ID VmId).

Message #

Finished Allocating VF (VFID: %4) on Nic (Name: %3), time %2 s. (Virtual machine ID %1)

Fields #

Description

Started Deallocating VF (VFID: ) on Nic (Name: ). (Virtual machine ID ).

Fields #

Description

Started Deallocating VF (VFID: Parameter1) on Nic (Name: Parameter0). (Virtual machine ID VmId).

Message #

Started Deallocating VF (VFID: %3) on Nic (Name: %2). (Virtual machine ID %1)

Fields #

Description

Finished Deallocating VF (VFID: ) on Nic (Name: ), time s. (Virtual machine ID ).

Fields #

Description

Finished Deallocating VF (VFID: Parameter1) on Nic (Name: Parameter0), time Time s. (Virtual machine ID VmId).

Message #

Finished Deallocating VF (VFID: %4) on Nic (Name: %3), time %2 s. (Virtual machine ID %1)

Fields #

Description

Started Assigning VF (VFID: ) on Nic (Name: ). (Virtual machine ID ).

Fields #

Description

Started Assigning VF (VFID: Parameter1) on Nic (Name: Parameter0). (Virtual machine ID VmId).

Message #

Started Assigning VF (VFID: %3) on Nic (Name: %2). (Virtual machine ID %1)

Fields #

Description

Finished Assigning VF (VFID: ) on Nic (Name: ), time s. (Virtual machine ID ).

Fields #

Description

Finished Assigning VF (VFID: Parameter1) on Nic (Name: Parameter0), time Time s. (Virtual machine ID VmId).

Message #

Finished Assigning VF (VFID: %4) on Nic (Name: %3), time %2 s. (Virtual machine ID %1)

Fields #

Description

Started Unassigning VF (VFID: ) on Nic (Name: ). (Virtual machine ID ).

Fields #

Description

Started Unassigning VF (VFID: Parameter1) on Nic (Name: Parameter0). (Virtual machine ID VmId).

Message #

Started Unassigning VF (VFID: %3) on Nic (Name: %2). (Virtual machine ID %1)

Fields #

Description

Finished Unassigning VF (VFID: ) on Nic (Name: ), time s. (Virtual machine ID ).

Fields #

Description

Finished Unassigning VF (VFID: Parameter1) on Nic (Name: Parameter0), time Time s. (Virtual machine ID VmId).

Message #

Finished Unassigning VF (VFID: %4) on Nic (Name: %3), time %2 s. (Virtual machine ID %1)

Fields #

Description

Could not find an Ethernet connection resource pool with ID 'Parameter0'.

Fields #

Description

Could not find an Ethernet connection resource pool with ID 'Parameter0'.

Message #

Could not find an Ethernet connection resource pool with ID '%1'.

Fields #