Hello
Hope you're all doing well these days.
I work for a company in Spain and I would like to ask you about an issue I’m facing with archive offload to AWS S3 storage.
We are currently performing backups on a capacity tier (AWS S3) without issues but archive tier offload is failing. Here is what the proxy appliance log says:
[...]
02.12.2021 15:02:46] <43> Info [Ssh] Granados '617c81c8-8c61-404a-86c0-1f00ecf6ee18' connected to . Session: [SSH Session; Local: ; Remote: ]
[02.12.2021 15:02:46] <43> Info [Ssh] Connected to x.x.x.x while other addresses () are unavailable.
[02.12.2021 15:03:07] <43> Error Failed to connect by SSH. RetryCount: '0'. MaxRetryCount: '10'.
[02.12.2021 15:03:07] <43> Error Failed to login to host: 'x.x.x.x', port: 2500, elevation to root: 'no', autoSudo: no, use su if sudo fails: no, host name: , IPs: [x.x.x.x], AuthenticationData: [UserName: ubuntu, AuthTypes: [PublicKey]]. The destination would not be a correct SSH server. (System.Exception)
[...]
x.x.x.x is our Veeam B&R server located in our internal network.
- We currently have that Veeam B&R internal server selected as a gateway server in the S3 Glacier repository.
- I have already configured both TCP 22 and TCP 443 ports in the security group configured under "Proxy Appliance" on the S3 Glacier Veeam side.
- I’ve been able to verify that EC2 appliances are being created on AWS side.
- I have already configured a firewall rule to reach AWS.
What am I missing?
I've already opened a case with Veeam support. I'm waiting for their answer.
Thank you very much for your time.

If you are able to answer this correctly, you should be able to resolve this issue.