Yes, it seems like you are exceeding your 85kbps and that is the reason for the drops. I don't think that the burst is the problem. I would suggest that you up the 85kbps to something higher. You won't be setting that bandwidth aside, during normal operations, queueing only goes into affect once the pipe starts getting full. Plus, depending on what codec you are using you can fill that 85kbps up pretty fast.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...