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Knowledge Base

ESX host continually disconnects from the vCenter Server following an upgrade to ESX 4.x (1011647)

Last Updated: 3/20/2024Categories: TroubleshootingTotal Views: 72306Language:
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Symptoms

After upgrading VirtualCenter to vCenter Server 4.x, you may experience these symptoms:

ESX hosts upgraded to ESX 4.0 or ESX 4.1, disconnect in vCenter Server 4.x with a status of Not Responding

When initially connected, the ESX hosts remain connected for a short time but then disconnect

If reconnected, the hosts disconnect again

Note: ESX 3.5 hosts may remain connected in vCenter Server 4.x.

Resolution

This issue may occur if the vCenter Server IP address (in the vCenter Server agent configuration file on the ESX) is incorrectly set to the loopback IP address 127.0.0.1.

To verify this, open /etc/opt/vmware/vpxa/vpxa.cfg on the ESX 4.0 host and check if the <serverIp> entry contains 127.0.0.1. If it does, you must change the IP address.

To change the IP address in vCenter Server:

Click Administration > vCenter Server Settings.

Click Runtime Settings.

Enter the IP address of the vCenter Server in the vCenter Server Managed IP field under the Managed IP Address heading.

Click OK.

Note: If you are using NAT between the vCenter Server system and ESX hosts, see Using NAT between the vCenter Server system and ESX hosts (1010652). Ensure that the NAT device is configured to redirect UDP traffic on port 902 to the vCenter Server. Ensure that the vCenter Server Managed IP address is set to the IP address of the external address of the NAT device.

Close the vSphere Client session connected to vCenter.

Open a new vSphere Client session with vCenter.

Connect the ESX host.

If the steps in this article do not resolve the issue, see Diagnosing an ESX Server that is Disconnected or Not Responding in VirtualCenter (1003409) for additional troubleshooting steps.

Related Information

For more information, see Verifying the vCenter Server Managed IP Address (1008030).

El host ESX se desconecta continuamente de vCenter Server después de una actualización a ESX 4.x
O host ESX continuamente se desliga do vCenter Server depois de um upgrade para o ESX 4.x
在升级到 ESX 4.x 之后，ESX 主机不断地与 vCenter Server 断开连接
ESX 4.x へのアップグレード後に ESX ホストが vCenter Server から切断され続ける

Detectable by VMware SkylineTM

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Additional Resources

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End Of General Availability of the Free vSphere Hypervisor (ESXi 7.x and 8.x) (2107518)

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•
Download and Install VMware Fusion (2014097)

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vCenter Single Sign-On サーバのデータベース構成の更新 (2045528)

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Related Products:

VMware vCenter Server

VMware ESX Server

Related Versions:

VMware vCenter Server 4.1.x

VMware vCenter Server 4.0.x

VMware ESX Server 3.5.x

VMware ESX 4.1.x

VMware ESX 4.0.x

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