People have been talking about this on the outages list too.
»www.clear.com has been down for at least the last hour. They've also sent two emails during the last hour that my service with them has been disconnected due to a billing problem (they recently charged me, seemed to go through okay). One already connected device is still working okay, but my other device hangs trying to authenticate.
If you're using Clear for connectivity, i'd suggest not disconnecting until they get this worked out.
I haven't used their service in over two years and they've been sending out emails hourly about billing issues. Their chat support line is currently slammed with people that I assume are having issues.
Dream as if you'll live forever, live as if you'll die today.
Disclaimer: These are MY comments, my employer cant be held responsible.