Question Looking for help on issue preventing some iOS players from connecting to game servers

Hey,

I'm a solo-developer and networking is not my strong suit. Sadly after porting the backend servers from GameSparks to Nakama in the last week, I'm running into an issue I don't even know how to diagnose. Some small percentage of the iOS players cannot connect to the new servers (android and pc are fine)

Using some emergency logging, I can see that they are getting "request timed out" and "Cannot connect to destination host". However, when asked to try to connect to the server endpoint manually in a browser on their device there are no problems.

Because there was some issues with the SSL certificate (and because the browser uses a different certificate chain check), I first thought it might be related so I created a new one but that didn't help.

If anyone has either run in this problem before or knows how to start diagnosing these kind of issues, please let me know.