I also use the storage box and easily have 30Mo/s bandwidth (and 130Mo/s+ from a hertzner server), so that's strange that you seemed capped at 3Mo/s. Are you not in Europe ? You should probably contact the support to report it, because that almost definitely now how they intend their product to be.

Mo/s means megabytes per second (the French abbreviation for mégaoctets par seconde). It measures data-transfer speed and is equivalent to MB/s (capital B) in English.

Hetzner servers aren’t billed against transfer quotas to storage box, and get a direct, faster link.

It sounds like you’re connecting through the public interface, for which many ISPs in the US rate limit the Hetzner storage boxes. In my case, around 3mbps.

Using a VPN from your home (unintuitively) increases your throughput, alternatively use concurrent webdav (HTTPS, typically not rate limited) without VPN.

Said plainly, the symptom you’re seeing is the same reason I could likely guess your ISP, and has nothing to do with Hetzner.

Please, try and guess my ISP.

I'm not in the US. I'm also not aware of my ISP throttling uploads to particular services.

A VPN failed to help.

I had a similar issue with an older version of Restic + Hetzner, update to latest stable, if you haven’t yet. It improved my speed literally 10x, something to do with buffering over ssh.

last i remember, you had to use the hetzner VMs to route the traffic to have normal speeds

storage box -> public internal = slow

storage box -> hetzner vm -> public internet = fast