Packet loss is a real performance killer. Even a small percentage will result in enough TCP retransmissions to be noticeable. I had a cable DOCSIS connection f

Packet loss is a real performance killer. Even a small percentage will result in enough TCP retransmissions to be noticeable. I had a cable DOCSIS connection for a while that would average 0.9% packet loss for long periods of time, with jumps to the 2 or 3% range. I remember there were days where I'd get like only a couple megabits due to extreme loss. It took a year to get it resolved, and even then I'm not sure if it was deliberate or accidentally fixed. You wind up with all sorts of excuses. "It must be your splitter." "We should recap the end of the cable." "It must be your router." They refuse to do basic diagnostics, like checking your neighbors connections for packet loss (which can be done remotely.)