The virtual machine loses network connectivity after a reboot and the Connected option does not remain selected for the virtual network adapter in the settings for the virtual machine

Products

VMware vSphere ESXi

Issue/Introduction

Symptoms:

The virtual machine loses network connectivity.
The connected option within Virtual Machine > Edit Settings > Network Adapter > Device Status appears deselected even when you have selected it.
The network adapter inside the guest operating system shows:

Network Cable Unplugged
No VMware products such as vShield Zones, Site Recovery Manager,VMware View Horizon or others are in use.
When you run this command, while checking the Connected option of Network adapter in Edit Settings of virtual machine:

tail -f /var/log/hostd.log | grep -i virtual_machine_name

Where virtual_machine_name is the name of the virtual machine, such as spvs55

You see entries similar to:

<YYYY-MM-DD>T<time>.935Z [3D080B90 info 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx' opID=20DD2982-000006AB] State Transition (VM_STATE_ON -> VM_STATE_RECONFIGURING)

<YYYY-MM-DD>T<time>.935Z [3D080B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx' opID=20DD2982-000006AB] Invoking interceptor:1-hbr

<YYYY-MM-DD>T<time>.935Z [3D080B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx' opID=20DD2982-000006AB] Done invoking interceptor:1-hbr

<YYYY-MM-DD>T<time>.941Z [3DA80B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx' opID=20DD2982-000006AB] Current VM Tracking state: disabled

<YYYY-MM-DD>T<time>.944Z [3DA80B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx' opID=20DD2982-000006AB] Setting VM's tracking state to disabled.

<YYYY-MM-DD>T<time>.966Z [3D801B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Handling message _vmx8: Failed to connect ethernet1.

<YYYY-MM-DD>T<time>.966Z [3C8D9B90 info 'vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Disconnect check in progress.

<YYYY-MM-DD>T<time>.967Z [3D801B90 info 'Vimsvc.ha-eventmgr'] Event 4302 : Error message on <host>.lkm.<subdomain>.lcl on c7000blade2.lkm.<subdomain>.lcl in ha-datacenter: Failed to connect ethernet1.

<YYYY-MM-DD>T<time>.968Z [3C744B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Retrieved current VM state from foundry 4, 8

<YYYY-MM-DD>T<time>.968Z [3C8D9B90 info 'vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Disconnect check in progress.

<YYYY-MM-DD>T<time>.968Z [3CADEB90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Retrieved current VM state from foundry 4, 8

<YYYY-MM-DD>T<time>.969Z [3C640B90 info 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Answered question _vmx8

<YYYY-MM-DD>T<time>.986Z [3CCC1B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Handling message _vmx9: Failed to connect virtual device Ethernet1.

<YYYY-MM-DD>T<time>.986Z [3CCC1B90 info 'Vimsvc.ha-eventmgr'] Event 4303 : Error message on <host>.lkm.<subdomain>.lcl on c7000blade2.lkm.<subdomain>.lcl in ha-datacenter: Failed to connect virtual device Ethernet1.

<YYYY-MM-DD>T<time>.001Z [3C2E2B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Retrieved current VM state from foundry 4, 8

<YYYY-MM-DD>T<time>.001Z [3C8D9B90 info 'vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Disconnect check in progress.

<YYYY-MM-DD>T<time>.002Z [3CDD9B90 info 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Answered question _vmx9

<YYYY-MM-DD>T<time>.002Z [FFD13D20 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx'] Retrieved current VM state from foundry 4, 8

<YYYY-MM-DD>T<time>.005Z [3DA80B90 info 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx' opID=20DD2982-000006AB] State Transition (VM_STATE_RECONFIGURING -> VM_STATE_ON)

<YYYY-MM-DD>T<time>.007Z [3DA80B90 info 'Vimsvc.ha-eventmgr' opID=20DD2982-000006AB] Event 4304 : Reconfigured <host>.lkm.<subdomain>.lcl on c7000blade2.lkm.<subdomain>.lcl in ha-datacenter

<YYYY-MM-DD>T<time>.019Z [3DA80B90 verbose 'Vmsvc.vm:/vmfs/volumes/52e1fb72-15468e94-f978-001e0bdad658/<host>.lkm.<subdomain>.lcl/<host>.lkm.<subdomain>.lcl.vmx' opID=20DD2982-000006AB] Time to gather config: 11 (msecs)</time></time></time></time></time></time></time></time></time></time></time></time></time></time></time></time></time></time></time></time></time>

Environment

VMware vSphere ESXi 5.1

Cause

This issue occurs if the ESXi host is unstable after a network/power outage.

Resolution

To resolve this issue, reboot the host to stabilize the hypervisor.

To reboot the host:

Un-register all the virtual machines from the host and re-register them on different ESXi hosts in the cluster.
Reboot the ESXi host.
vMotion the virtual machines back to the host.

Additional Information

仮想マシンを再起動するとネットワークから切断され、仮想マシンの設定画面上の仮想ネットワークアダプタの接続オプションの選択が解除される

Impact/Risks: