Cool, that works: I can see useful data with the proper port and 40-bytes packets.
1.
Here's what I get when trying to synch and download from an FTP server in Eclipse's FTP perspective, on small PHP files:

Most of the times I get incomplete synchronization data, and as seen here, I often have to make several attempts in order to download all needed files.
Do I need to graph more points for the trace to be significant, or is this sufficient to pinpoint the router that's causing packet loss?
Thanks,
Eric