UPDATE:
✅ RESOLVED
We apologize again for yesterday's issues with network instability. Problem was not on our side. According to our data center information situation has been resolved and network is stable again.
Unfortunately, this is second major problem at data center in Dusseldorf. We have decided during following weeks to move all services from that data center to data centers in Falkenstein and Nuremberg, where we operate other services and have not experienced any similar issues.
Thank you for your support and understanding.