Relay error: [WinError 5] access is denied, preventing access to most websites except YouTube.

This issue highlights a critical failure in the product's core value proposition: general internet access bypassing DPI. The 'WinError 5' indicates a system-level access problem, likely related to permissions or firewall configurations, preventing the relay from functioning broadly. The fact that YouTube works suggests a partial setup or specific routing for Google services, but the inability to access other sites renders the solution largely ineffective for its intended purpose. This directly impacts user adoption and trust, as the primary need for such a tool is unrestricted access. The market implication is a demand for robust, system-integrated solutions that handle diverse traffic without encountering fundamental OS-level access blocks.