Right. I still haven't been able to reproduce this on Windows 7/10.

If you clear the cacert.pem file in the Options/Connect/Options/SSL dialog, so no trusted authorities file is in use, and then try connecting again to libera.chat, what happens?

If you enable "Display invalid certificates for approval", what does it show as the error in the SSL Warning dialog?

Last edited by Khaled; 30/09/21 10:14 AM.