@lyse@lyse.isobeef.org Oh gawd. This is the point where computing stops being fun. 😂

• Can you disable the snakeoil junk temporarily? Probably not, eh?
  
• Have you verified with an external device that it really is your laptop that’s dropping the packets? Like, what does tcpdump on your router see?
  

If this works reliably in the office, then it feels like some kind of fail-safe mechanism of the snakeoil stuff. If it can’t see its control server (which might only be reachable from the office?), then it shuts down web traffic? Something like that?

Any idea how the snakeoil works? Maybe it does LD_PRELOAD magic to hijack syscalls like connect()? Does it use kernel modules?