Ask HN: any ideas on how to deal with lousy Time Warner Cable service in NYC?

Time Warner is the only option in my building. The internet is slow, flaky, and my partner and I can barely do low load things like ssh into servers and web browse simultaneously. Threads like this: http://news.ycombinator.com/item?id=5276772 and their twitter feed leads me to believe that I am not alone. Does anyone in NYC know how to fix this so I can get some work done at home? (Calling their customer service hasn't been helpful).