@ashok_barik, maybe it’s better you let the support team deal with your enquiry. If you have 300 users connecting, you should be covered by your subscription. The forums aren’t really the appropriate place to get technical assistance because sensitive information may be published, plus the forums won’t give you the same response time to which you are entitled via the support center (please proceed to your customer area or contact your administrator if you don’t have your credentials).
Ashok Barik, you should have received an email from us with further details about the best way to get support for your environment, please check your email inbox for emails from forum[at]nomachine[dot]com. Thank you.