Yes, definitely get that line checked out, that should be your first move. I'd wait until they do the test until trying to tweak anything.
You could go and do the line quality test at dslreports.com also.
-REH
Not really anything else to do, you're over your download cap, and close to your upload cap. I guess all you can do is be happy, or upgrade your plan
Just be sure to run frequent spyware and virus scans.
-REH
What are the specs for the two PC's? obviously there's going to be a difference in performance if they are one new and one outdated, but what is weird is that one gets greater download, and one greater upload. Have you checked for spyware?
-REH
Lookin good to me
1 24 ms 7 ms 11 ms 69.166.155.1
2 13 ms 15 ms 14 ms 69.165.28.73
3 11 ms 11 ms 11 ms 69.165.28.69
4 15 ms 15 ms 15 ms 69.165.28.65
5 15 ms 15 ms 19 ms g1-03-01-00.a0.cle00 [66.109.14.125]
6 22 ms 25 ms 20 ms p3-00-01-00.c0.pit75.adelphiacom.net [66.109.1.105]
7 32 ms 32 ms 31 ms p3-01-01-00.c1.chi75.adelphiacom.net [66.109.0.209]
8 33 ms 31 ms 32 ms a1-01-00-00.p0.chi75.adelphiacom.net [66.109.3.14]
9 34 ms 29 ms 33 ms ge-6-3.car2.Chicago1.Level3.net [67.72.124.21]
10 33 ms 31 ms 33 ms ae-1-53.bbr1.Chicago1.Level3.net [4.68.101.65]
11 49 ms 55 ms 53 ms as-4-0.bbr2.NewYork1.Level3.net [64.159.0.238]
12 51 ms 51 ms 51 ms ge-9-0.ipcolo1.NewYork1.Level3.net [4.68.97.45]
13 59 ms 54 ms 55 ms 4.78.164.2
14 49 ms 51 ms 56 ms a0nycc2.gw-core-a.nyc.schlund.net [217.160.229.104]
15 58 ms 51 ms 56 ms perfora.net [217.160.226.92]
Trace complete.
-REH
First Follow all the steps in VanBuren's topic here https://testmy.net/topic-2097
If you are on Windows XP use the cablenut file that I have attatched to this message. Restart, and post back with new results.
-Rob