Take a look SupremeViewer. This is another remote access software that I am using during the past year. It is free for personal and business use. Up to now I don't see any usage limitations.

TeamViewer has a lot of session time restrictions now. That's why I moved to another remote access software[^] - SupremeViewer. It is lightweight, fast and secure, and it is completely free for personal use and small businesses.