I've looked through the forum for answers, but can't make a decision if this is wrong or not.
Speedtests (BT etc) show a 40-50Mb/s speed but my download manager shows a much slower throughput of never more that 5.1Mb/s.
Am I missing something or just plain dumb :-)
Fixed! Go to the fix.
1 Byte = 8 bits
Now you're stuck with me because my new ISP doesn't run a forum