Hello all.
So let me try to give a brief background that will be relevant to my problem.
My girlfriend Allie lives in an apartment with her roommate Kelly. They each have a computer in their rooms. Kelly's PC is hooked up with cable internet, and she uses a linksys router to broadcast the signal to Allie's laptop PC. which came with internal wireless capabilities. Sadly, both these girls neglect their computers' health, which by default makes me the computer maintenance man. I'm by o means an expert but I think I'm a little more advanced than the average user.
I've spent the past few days cleaning infectons off Kelly's computer with the help of a few generous people on these forums, and they have given her computer a clean bill of health. She had been experiencing popups, computer lag, and internet lag. Her computer operates fine now.
Allie's computer however, was still experiencing internet slowness. Very slowness. As in 1kb/s downlad speeds. So, I atempted to run my arsenal of security programs (spybot, adaware, avast, zonealarm, hijackthis, etc.), but none of the updates would download. SO I brought her laptop to my house which runs a wireless network using the same model linksys router. The internet on Allie's laptop works beautifully over here, with download speeds in the 300 kb/s range. So I ran my security arsenal and her computer seems to be clean of all malware etc.
So now I'm to the extent of my personal knowledge. What are the other factors that could be damaging her internet speeds at her apartment. The little network systray icon says she has an excellent connection to Kelly's network. Kelly's internet works fine on her computer, so I've ruled out cable problems. What is my next move? Can anyone help?