If you are interested in how "cracks" or timing vulnerabilities work from a security research perspective, this is a foundational study:
It sounds like you're looking for a way to bypass licensing or access premium features for timing software. While the idea of a "crack" might seem like a quick fix, it usually brings more trouble than it's worth. timing solution crack full
If you cannot connect to the servers, check if you have some antivirus or firewall blocking the connection.