I've honestly not had a lot of issues with that up until now. Real world it doesn't seem to be blocked by a whole lot of things, except where you only have port

I've honestly not had a lot of issues with that up until now. Real world it doesn't seem to be blocked by a whole lot of things, except where you only have port 80 and 443 anyway. I've actually seen it work in a lot of places I wouldn't have expected it to, like hotel wifi.