This incident has been resolved.

Init7 reports that a restart of a router has been completed and services are stabilizing.

The issue has been confirmed by our upstream provider. This issue will not affect all sites.
We'll update this issue as soon as new information becomes available.

Statuspage of Init7 https://as13030.net/status.php?ticket=4212949
#4212949 (2020-02-04 16:00): Packetloss between Zurich (ZRH2) and Frankfurt (FRA3)

We are currently seeing connectivity issues towards ch1.lagoon - This seems to be a networking issue on a provider level. We're in contact with our upstream providers to see if this issue can be observed on their network.

We are currently investigating this issue.