We got the update that our traffic will from now on be routed though a backup system to improve the connection.

The issue reoccurred, waiting for feedback from the DDoS protection provider.

Status update from the DDoS Protection provider: "Attack patched [...] Continuing to monitor".
We are hoping it's resolved by now then and the Server will be fully available once again.

Currently, we are experiencing some networking issues from our DDoS Protection provider. We sadly are not able to do anything for the time being and have to wait for a fix from their side.