Error 503: Failed connecting to the server

[SkyEmperor]

Hi,

It's been a while since I haven't played PR, maybe one year. So I've recently decided to get back to the game and I encountered this issue. I tried every single fix mentioned on Discord. I upgraded to W10, got the new certificate, uninstalled and reinstalled. I tried everything but the issue remains and I'm simply running out of ideas.

I've deleted the DST root certificate and kept ISRG certificate but it still doesn't work.
Moreover, that DST certificate somehow reinstall itself after reboot... I guess it's obviously not an issue from PR side but most likely from Windows, though I don't know how to fix it, any chance some of you could help me ? Let me know if you need more details,

Thanks in advance.

[SkyEmperor]

I actually managed to fix it, subject can be locked.

To anyone facing this issue, I believe it was due to some registry key messing up as I did some changes there. I also uninstall my antivirus "Avira"