We're trying to transfer large files from NY to LA, from one Mac to another.
Both sites have 100/100 mbps internet. Both report full speed at www.speedtest.net.
But we've tried AFP, SMB and SFTP, and can't get it to go any faster than 20mbps.
iperf -- with parallel connections got up to 16-20 mbps.
However, we are doing this over a LogMeIn Hamachi VPN. Does that throttle/limit the speed?