As a result of a minor software upgrade on one of our distribution switches between 07h20 and 07h45 CEST, customers may have noticed two brief interruptions in network connectivity for the hosting DNS and network access for some servers. The upgrade procedure was intended to be non-service-affecting following the in-service-software-upgrade mechanism. We apologise for the inconvenience and are investigating the issue with the manufacturer to ensure that any software upgrades are transparent.