Until Ztruker gets back to you, here are some suggestions:
1 If you are currently connected wirelessly then try a cat 5 patch cable between your router and computer......see if this improves things ..you will need to give it a good test.
2 If still no joy when connected by cat 5 patch cable then open a command prompt (in XP, Start>run>cmd>Enter)
and flush your dns cache then release and renew.. then resetlog, here's the commands.
still at the command prompt now type
netsh int ip reset resetlog.txt
(NOTE on all the above commands the spaces are vital (if in any doubt then copy and paste the commands.)
3 Still connected by cat 5 patch cable close down your computer, powercycle your modem and router...here's how for the powercycling
1. Shut down your system
2. Unplug the power cable from your modem
3. Unplug your power cable from your router
4. Keep them unplugged for about 3 or 4 minutes, this will clear out the junk and let them reset themselves.
5. Plug the power cable for the modem back in and make sure all the lights come on
6. Plug the power to your router back in and wait until all the lights come on.
7. Boot up your system and check your internet connection.
4 Next Try your Internet connection for a short test with your software firewall and your anti virus turned off (don't forget to turn it on when you have done. and don't do anything like downloading emails with your AV off!)
5 If you now have a good Internet then.......... rejoice........
6 if not then at the time you are experiencing a problem do this
7 at the command prompt, type
(note the space is necessary)
hit the enter key
and copy the output into your reply so we can see what is currently going on, (note if you don't want your IP address to be posted then edit the last 4 characters out)
when you have finished type
hit the enter key
and the command prompt will disappear