kan niet door mijn muziek (op e pc) bladeren
Based on topic's name:
Does it related with Sonos-software? And with this software -> not possible to open/connect to Sonos (?!). Or how it works? And does it possible when F-Secure solution is disabled?
Why you can not to see your music? Maybe good to know more information about platform/OS and connection with F-Secure solution. For potential advices.