VMware vCenter Server Tasks and Events tab displays: Cannot login user @127.0.0.1: no permission

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:

• On the Tasks and Events tab in VMware vCenter Server, you see the error:
  
  Cannot login user @127.0.0.1: no permission
   
• In the /var/log/hostd.log file contains entries similar to:
  
  <YYYY-MM-DDTHH:MM:SS>.637Z [71840B90 info 'Solo.Vmomi'] Throw vim.fault.NoPermission
  <YYYY-MM-DDTHH:MM:SS>.637Z [71840B90 info 'Solo.Vmomi'] Result:
  --> (vim.fault.NoPermission) {
  --> dynamicType = <unset>,
  --> faultCause = (vmodl.MethodFault) null,
  --> object = 'vim.Folder:ha-folder-root',
  --> privilegeId = "System.View",
  --> msg = "",
  -->}

Environment

VMware vSphere ESXi 6.7
VMware vSphere ESXi 6.5
VMware vSphere ESXi 7.0
VMware vSphere ESXi 5.5
VMware vSphere ESXi 5.1
VMware vSphere ESXi 6.0

Cause

This issue occurs as the /etc/vmware/hostd/authorization.xml has been changed and no longer contains information for the dcui user.

Resolution

To resolve this issue, add the the dcui user the ESXi host as an Administrator. For more information, see Add a Local ESXi User in the VMware vSphere 5.1 Security Guide.