If you have a NoMachine software subscription, login to your User Area and open a support enquiry. Our support team will be able to help you. If you don't have a subscription, the Knowledge Base covers every NoMachine product and version in depth from installation and configuration to performance tuning, known issues, and bug fixes. Be sure to also explore the forum archive to see if your question or issue has already been discussed there by the NoMachine community and former free edition users. It contains years of practical advice, troubleshooting tips, and valuable resources that can help you.