Traveling around the UK a bit, I’ve been hopping on to the WiFi on trains and at hotels. Inevitably, for some reason, I connect and wait
Today I learned that if you hit the little info button on the WiFi you just connected to, it may have detected the portal page (but not popped it up yet–why, I don’t know, I just work here). If it’s detected it, there will be a little “Open Portal Page” link which will pop it up and let you get to crafting mines with your kids.
(Again, why it can’t open it right away even though it’s detected it is the real question.)