Thought I read somewhere that there is an issue this past couple of months with Xplornet satellite and their traffic shapers(Sandvine?) and issues with some legitimate protocols that could be mistaken for filesharing protocols if their is poorly written DPI.
I think it was Windows update issues where updates were blocked until the 'free for all' overnight hours.
The Canadian gateways are administered by somebody for traffic shaping. Xplornet probably points out the management practices(as they purchased all the Canadian bandwidth on Viasat1 and Echostar17) and Hughes or Viasat do the backend.
Two years ago and issues with Xplornet and VOIP.