- I was intending which was origin of data, in which data center (EU, US, and so on) is stored source, if far away from Ionos S3 Region (destination).
What I have in mind, it could be some link issues between source and destination...
Il I'm not wrong Hetzner Storage Box service does not have any S3 endpoint, .... Just sFtp, webdav, and others.
So what I can suggest to you is to debug using other alternative S3 service. You could try backblaze, idrive e2, or Exoscale.
Can you tell also us more about Cloudron instance resources? How much Ram do you have? Cpu? is Bare metal server or Vps?
I think all those informations help to better understand.