Issues downloading apps

I have an issue when trying to download any app (FetchError: request to failed, reason: unable to get local issuer certificate). I can download the .json when using Chrome thou.
I think there might be a firewall block somewhere, but I can’t request an opening without the correct information.
What exactly would be blocked here (I would need address or ports) so that I can request this be opened?

Hello @andreas.hartmann! This sounds like it may be an issue with your firewall settings, but I would need to see your launcher logs to confirm.

Here is a list of Firewall Endpoints that you need to be accessible:

Let me know if this helps!