Port 80 problem?!?

[.Griff.]

In an attempt to kill a few minutes I thought I'd try the speedtester on Thinkbroadband's homepage. Now I'm more than aware that these testers aren't 100% accurate but that aside the results have left me slightly concerned.

By default their tester uses port 8095.

5.35pm - http://www.thinkbroadband.com/speedtest/results/id/1225474454195278637.html

6.10pm - http://www.thinkbroadband.com/speedtest/results/id/12254766076233439223.html

Pretty much what I expected so no problems there.

The speedtester also allows you to use port 80 so I gave that a try.

5.35pm - http://www.thinkbroadband.com/speedtest/results/id/12254743641896928620.html

6.10pm - http://www.thinkbroadband.com/speedtest/results/id/12254766993828939247.html

Obviously you can see for yourself there's a massive difference in the results from port 8095 and port 80.

I've also noticed that over the last couple of weeks my upload speed to sites such as Photobucket, Facebook and Xfire (screenshots for example) has deteriorated dramatically.

Could there be something restricting port 80 on my system?

ISP - Be
AV - NOD32
FW - Default Windows
OS - Vista Ultimate x64 SP1 (Retail)

 

[UniqueID]

yes most likely antivirus/firewall or the isp's network load balencing thing (yes i know its not called load balencing) but yea i would'nt worry about it, www.speedtest.net i've always found accurate.