I am not on a router, I have 0 spyware, and normally it is always a constant 4.8Mb connection. I don't know what it's problem is. I called the cable company and they are supposed to place a booster on my line, so that should clear things up.
Link with my last 3 tests: http://www.testmy.net/forum/index.php?topic=3652.msg79413#msg79413