So I've talked to TimeWarner they claim nothing is being capped.
I have two seperate TimeWarner connections here at home (a 50/5 and a lower one) and both don't work correctly.
At the office, I have TimeWarner as well, yet it seems that one is fine (I haven't tested a download there but I did the following):
Go to: »www.giganews.com/performance.html
Under Newsgroup Download Speed Test click on Test. If testing keeps blinking yet nothing else happens then something is being blocked. At work when I do this it actually works, but at home with 50/5 it just keeps blinking meaning there is some sort of block to the servers happening by TimeWarner.
I even had Tier 3 tech support go to that website and attmept the same thing and it seems his connection to the speed test was blocked as well. This is not a Usenet server provider issue, instead this is definietly a TW block/cap UGh