Remote Access Account Lockout is enabled, and the user's authentication attempts have exceeded the designated lockout count ...

Remote Access Account Lockout is enabled, and the user's authentication attempts have exceeded the designated lockout count because the credentials they supplied (user name and password) are not valid. The user account will be removed from the locked out list on successful authentication or on the expiration of the configured lockout time. To manually reset a locked out account, delete the registry subkey  that corresponds to the user account name: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
emoteAccess\Parameters\AccountLockout\domain name:user name