When trying to reconnect a vCenter Managed ESXi Host, you recieve the following message
Reconnect host
hostname.domain
A general system error occurred: internal error: vim.fault.InvalidLogin
There's an easy fix to this issue. Not valid if you previously added your server and checked "Enable Lockdown Mode".
Connect directly to the esxi server with the vSphere Client,
under Configuration Tab find and pick Security Profile.
Pick Properties
Start a Session to your vCenter Server with the vSphere Client
Try Reconnect Host.
vCenter Server doesn't find VirtualCenter Agent running and deploys a new agent to reconnect, everthing works fine!. Best Practices allowed please.
Sorry About my English.