We all share the same challenges of connectivity - our WiFi goes down or we're driving through a dead zone.
If Coinlytics loses connectivity, all of its widgets will update to tell you exactly that - as soon as you get back to a place where your connection comes back, after a short while Coinlytics will refresh and keep going. If you think you've got a good signal and the widgets are still telling you they're disconnected, tap on them to refresh.