Low file trasfer speed My file transfer speed is too slow. What can I do to increase it? Brosix uses advanced communication techniques to ensure highest communication speed for all users. However, if you are behind a NAT or firewall some of your file transfers might be relayed trough our servers and thus the speed could be slow. Personal […] Read more ยป Brosix Applications Linux Mac Windows connection speed file transfer NAT port map portmap slow upnp