Interestingly, last summer we had better WiFi at our RV park in Chicken, which uses local diesel generators and solar panels for all of their power, than we did in Fairbanks. However, there was no cell service on our AT&T phone or TV in Chicken, unlike Fairbanks. We ended up using McDonald's for uploading photos to our blog in Fairbanks because it was the only place we could get enough speed to do it. However, we never were able to even get connected to the Internet at the Whitehorse McDonald's.
But then, no one really needed to know where we were at all times anyway. Part of the charm of NW Canada and Alaska is being in the boondocks and occasionally away from "civilization" (although that's hard to do when you are in an RV with a microwave and LCD TV that is always on asphalt or good gravel roads).