On attempting to re-connect a disconnected host in the vCenter, it would fail with the below error message:
Operation failed!
Task name: Reconnect host
Status: A general system error occurred: pam_passwdqc: Error parsing parameter "Retry=3":Invalid
VMware vCenter Server 7.0
VMware vSphere ESXi 7.0
An incorrect value is present in the Security.PasswordQualityControl field under the Advanced System Settings for the affected host.
Steps to verify and correct the values:
Select the host in the vCenter UI -> Configure -> Advanced System Settings -> Filter the 'Key' field using Security.PasswordQualityControl
retry=3 min=disabled,disabled,disabled,7,7
Reference Article:
ESXi Passwords and Account Lockout