dammit you beat me to it
it is a good indication for problems though
this is from teesside
1st 128K took 1823 ms = 71899 Bytes/sec = approx 598 kbits/sec
2nd 128K took 1832 ms = 71546 Bytes/sec = approx 595 kbits/sec
3rd 128K took 1793 ms = 73102 Bytes/sec = approx 608 kbits/sec
4th 128K took 1893 ms = 69240 Bytes/sec = approx 576 kbits/sec
or try
this