Indeed the issue is resolved now on our side. If it happens again, I will share you the response headers and body as you requested so that you can troubleshoot the issue.
I don’t have much knowledge in network and cybersecurity so I don’t know if this could be related to this issue but we had one case where we could not connect to a websocket server due to SSL inspection cybersecurity system in our company, this was preventing us to use the associated API.