DSL = Before going thru a lot of exercises, Call your ISP and ask them if they are having any problems, to first eliminate that possibility. You could throw in a request for a new modum. Just make sure it isn't your router that's causing the problem.
Call your phone company and insist that when you are talking on the phone you frequently hear a lot of loud static/crackling, and that you want your outside and inside lines replaced.(Don't mention anything about the internet)
Try start/connect to/show all connections/right click on the connection that you are using/repair, and check for spyware/malware(See the sticky threads at the top of this page).
Flush your dns .=. start/run/ cmd/ ipconfig /flushdns/ok(enter)
Are you using a software firewall and/or router?
Unplug modem/router and turn off computer, then plug everything back in. Also check to make sure your network card is correctly installed.= Windows XP = r/click "my computer"/click the "hardware" tab/click "device manager"/
expand "network adapters" and see if there is anything listed, and if it is listed, see if it has an "X" or exclamation mark?
Clear/clean your cache and go to your local settings folder and empty your "temp" folder.
Broadband Reports =ยป The 'bible' for Information on DSL, Cable and Other High Speed Internet Services =
http://www.dslreports.com/tools +
http://www.broadbandreports.com/tools/ connection tools
http://www.broadbandreports.com/tools +
TCP Optimizer = Speed up internet =
http://majorgeeks.com/download.php?det=2104
http://pcpitstop.com/pcpitstop/default.asp
http://www.speedguide.net/downloads.php
http://www.broadbandnuts.com/software.shtml
http://www.speakeasy.net/speedtest
http://www.testmy.net
http://www.auditmypc.com/internet-speed-test.asp
http://cable-dsl.home.att.net = Navas Cable Modem/DSL Tuning Guide
Tautology Bandwidth Meter = http://homepages.paradise.net.nz/link/tbm
net meter = http://readerror.gmxhome.de