Google Cloud Storage Oauth fails everywere, on all my Duplicati installation!

[systematicguy]

I am sorry to chime in with Google Drive being problematic.
Reading up on

Failed to connect: Failed to authorize using the OAuth service

[Screenshot at 2021-07-03 20-27-49] Here is the log, I get basically the same error message as you. I have applied a new authid tokens several times and still get the same message. I can definitely get a new token. I have also spun up a new container fresh install and get the same problem. I can ping “duplicati-oauth-handler.appspot.com” from the host machine (OpenMediaVault) I can also ping that address from another container running syncthing. I tried that but just got “no file or direc…

I have problem in docker running on synology (2.0.6.101_canary_2022-03-13)
I also tested from my windows pure installation (2.0.6.3_beta_2021-06-17) from a totally different network - same error.

I tried to create oath token directly from Duplicati OAuth Handler
I tried to go first https://duplicati-oauth-handler.appspot.com/ and then Google Drive (limited) login

All give me new tokens, but same error message as the stacktrace above from @Sutnyul

Exact error message:

Failed to authorize using the OAuth service: Server error. If the problem persists, try generating a new authid token from: Duplicati OAuth Handler

Exact error message after regenerating and clicking the Test connection button:

Failed to connect: Failed to authorize using the OAuth service: Server error. If the problem persists, try generating a new authid token from: Duplicati OAuth Handler