Slow internet on Mac Pro

[sawihsiwi]

I recently got the Mac Pro 2.4GHz Quad Core with 6GB of RAM. While loading web pages seems fine when I try to download files it crawls as if on dial-up. I checked the internet speed on speedtest.net and I get 4Mbps. My iMac (24") which works on the same wifi network gets 20Mbps. Upload speed is the same (about 1Mbps). Do I need to configure my airport properties? please advise. Thanks.

[spinnerlys]

How are you connected to the router? If it is via wireless LAN, try Ethernet.
Do you run any software, that uploads something at full upload speed capacity?

[DoFoT9]

speedtest.net is hardly a good comparison of speeds - you might be downloading from a different geographical location.

even if they are at the same location you will get different results anyway.

download something from a reliable source, say apple.com, or google and ensure that you use Activity Monitor to check the network speeds.