Hello, I've been trying to setup an instance and have been running into an issue with federation. Despite having federation enabled (in the site admin panel), I can't seem to fetch or load content from other instances. I've checked the wiki and verified the system time, internet connectivity, and backend availability (via curl). I have it currently setup through Cloudflare and I am wondering if that could play into the issue. Would Cloudflare inhibit federation communication? I'd imagine the instance-to-instance requests being sent from my server would have the true origin IP that wouldn't match the DNS records (which would reflect cloudflare's ip addresses). Matrix doesn't seem to have issues with Cloudflare when it comes to federation from my experience, but I thought it would be fair to ask in case there are differences I'm not aware about. Any advice or insight would be appreciated.
Maybe something with WebSockets? Try creating an instance on your local machine and see what error it gets when it tries to access your real one.