I under stand that.
If I connect through my router at home, I'm going to show a different mac address than hard wired in my office, VPN, 3g, or a coffee shop.
There is no real way around this other than to reactivate every time I want to use ecart, or other extension??
3 activations wouldn't fix this either, only make it work a little longer before I have to reactivate.
I'm suprised I haven't seen more about this.
Weird that my desktop doesn't need reactivation after clearing them in my profile, only the laptop.