Who is your Internet Service Provider?

Also don't forget your d/l speeds may be affected by the host's ability to u/l. for example if the u/l host is dialup.

I have DSL 1.5 MB/s d/l, 1.5 MB/s u/l, but if I connect to host or multiple host, and they are dialup(modem) my d/l speeds rarely get above 30 - 40 KB/s even with 8 hosts.