What causes 2 second stall

untill the middle of last week everything was OK then I get a throughput problem, after testing I find that I am getting a repeated 1 to 2 second stall. Having never heard off it I dont know the answer! can anyone help me? Thanks

Try changing the DNS servers you use and see if that helps.

Bear in mind that the cause of a delay like that could be on your own computer or internal network and nothing to do with the ADSL connection.

(Hmm, could be a Vista user )

More info needed. What kind of traffic (browsing P2P or what)? PC system, OS firewall anti-virus? Which ISP?

To put this in context I have had two problems over the last week:-

1) The Link Scanner on new AVG 8 slows browsing down horrendously. I have turned the Link Scanner off.

2) There has been centralised problems which means some pages on somes sites failed to deliver correctly:-

http://www.eukhost.com/forums/f9/network-issue-linx-18-05-2008-a-4906/