I'm in the exact same boat right now man. I had issues all last winter until ofdma was disabled and now for the past month or so I've been getting packetloss again. Once again the tech's say everything is fine, and when the supports tests it they can...
I just use pingplotter, as it's a lot easier to catch packetloss than command prompt. Every rogers tech will tell you to use command prompt, but it's a complete waste of time.
