Yesterday at around 23:00, our Farnborough data center (Datum) experienced a loss of its B-side power feed.

While our rack is normally fully resilient, one switch that connects our compute cluster to the network had an issue when the B feed failed.
This made our primary RADIUS servers temporarily unreachable for authentications.
We want to clarify that user sessions re-authenticate intermittently during a connection. It doesn’t mean the user was had a fibre or other problem; it just...