It's not just for my mother, but my entire family. The primary user of the bandwidth is, of course, me.
RDC is plain old port forwarding, until I came into this current customer site, where port 3389 is not allowed so I had to switch RDP port to 443. And it was working all well.
Until i got this plan, and put that Homeportal ADSL2 modem-router into use. The bandwidth is there, but the connectivity is not. On top of that, I have to separately deal with certain outgoing connections as well