You might need the vSphere Web Client system log files to resolve technical issues.

Depending on, whether you use a vCenter Server instance that runs on Windows, or a vCenter Server Appliance, the vSphere Web Client system logs can be found in the location listed in the table.

Table 1. Location of vSphere Web Client Logs

vCenter Server System


vCenter Server that runs on Windows


vCenter Server Appliance


The main vSphere Web Client log file is vsphere_client_virgo.log.

vSphere Web Client logs are grouped by component and purpose:

Table 2. vSphere Web Client Logs and Location on a vCenter Server That Runs on Windows

File Path

Log File




Contains all the communication between underlying Flex endpoint connections, internal tasks, and events. This is the mainvSphere Web Client log file.


localhost_access_log. <date>.txt

Contains individual HTTP requests from the Web browser


log.log ???

Contains information about the plug-in bundle communication.



Contains time stamps of startup and shutdown of the vSphere Web Client service.

C:\ProgramData\VMware\vCenterServer\logs\vsphere-client\logs access\

vim-ngc-install.log ??

Contains information about the installation of the vSphere Web Client including computer name, Operating System revision, the date of installation and the number of revisions that have been installed/upgraded on the system.

C:\Program Files\VMware\vCenter Server\VMware Identity Services\wrapper\bin\


Contains information about the state of the Java runtime environment.