On November 12 between approx. 09:36 and 09:45 CET, connections to parts of the internet were interrupted or showed packet loss for a few minutes, depending on the route. One of our upstream providers (ZET.NET / AS6204) carried out a short-notice emergency maintenance and took its connection to us offline without first shutting down the routing sessions properly.
Our routers needed some time to detect this and to move the traffic to our other upstream providers. Since approx. 09:45 CET all traffic has been running normally via our other upstreams. We are following up with the provider on its maintenance process and are reviewing how to speed up failover on our side.