Forogramero please start a discussion underSupport with details about your forum if you are experiencing issues on your own installation.
Whatever is happening with Discuss must be specific to our own hosting configuration.
I, too, have experienced issues accessing discuss.flarum.org, but it's been a few days without issue now. Requests usually timed out after 20 seconds with an HTTP 522 status code and an empty body. It happened more frequently on mobile, though it might be a coincidence based on the time of day I used mobile vs computer.