The vSphere Web Client lets you connect to a vCenter Server system to manage an ESXi host through a browser.

If an earlier version of the vSphere Web Client is installed, this procedure upgrades the vSphere Web Client.


vCenter Server 5.1 supports connection between vCenter Server and vCenter Server components by IP address only if the IP address is IPV4-compliant. To connect to a vCenter Server system in an IPv6 environment, you must use the fully qualified domain name (FQDN) or host name of the vCenter Server. The best practice is to use the FQDN, which works in all cases, instead of the IP address, which can change if assigned by DHCP.

Download the vCenter Server Installer.

Verify that the system has an Internet connection.

Verify that the system meets the software requirements for the vSphere Web Client. See vSphere Client and vSphere Web Client Software Requirements.

Before you install or upgrade any vSphere product, synchronize the clocks of all machines on the vSphere network. See Synchronizing Clocks on the vSphere Network.

Install vCenter Single Sign On, or upgrade to the current version.

Verify that the vSphere Web Client and vCenter Server are registered to the same vCenter Single Sign On server, to ensure that the vSphere Web Client can access the vCenter Server inventory.

Close all browsers before installing or uninstalling the vSphere Web Client.

Log in as a member of the Administrators group on the host machine, with a user name that does not contain any non-ASCII characters.

If you are upgrading the vSphere Web Client, and you plan to use it with any version 5.0.x vCenter Server instance that was registered to a version 5.0 vSphere Web Client without accepting the SSL thumbprint, see Version 5.1 vSphere Web Client Fails to Connect to Version 5.0.x vCenter Server.


In the software installer directory, double-click the autorun.exe file to start the installer.


Select VMware vSphere® Web Client and click Install.


Follow the prompts in the installation wizard to choose the installer language, and agree to the end user patent and license agreements.


Accept or change the default port settings.


Enter the information to register the vSphere Web Client with vCenter Single Sign On.

The vCenter Single Sign On administrator user name is admin@System-Domain, and the password must match the password you entered for the administrator user when you installed vCenter Single Sign On. The Lookup Service URL takes the form https://SSO_host_FQDN_or_IP:7444/lookupservice/sdk, where 7444 is the default vCenter Single Sign On HTTPS port number. Your entry should match the entry you made when you installed vCenter Single Sign On. If you entered a different port number when you installed vCenter Single Sign On, use that port number.


Click Install.


Start the vSphere Web Client by doing one of the following actions.

In a browser, go to https://vSphere_Web_Client_host_name_or_IP:9443/vsphere-client.

From the Windows Start menu, select Programs > VMWare > VMware vSphere Web Client > vSphere Web Client.

If you are installing or upgrading the vSphere Web Client as part of a vCenter Single Sign-On installation or upgrade, install or upgrade Inventory Service. See Install or Upgrade vCenter Inventory Service in a Separate Installation.