I have been trying for sometime now to get tls1.3 working with freeradius but it just dont work. How did you get it to work? What configuration did you use to force freeradius to use tls1.3?

I am getting below error

(1) eap_tls: (TLS) TLS - recv TLS 1.3 Handshake, ClientHello (1) eap_tls: (TLS) TLS - send TLS 1.2 Alert, fatal protocol_version (1) eap_tls: ERROR: (TLS) TLS - Alert write:fatal:protocol version (1) eap_tls: ERROR: (TLS) TLS - Server : Error in error (1) eap_tls: ERROR: (TLS) Failed reading from OpenSSL: error:0A000102:SSL routines::unsupported protocol