hi, I have set up on our freeradius server EAP-TLS with a user certificate. I put together the user certificate + key + CA server in a .p12 file. At first on android, windows 10 and 11 it is working. My problem is with windows 7. *The freeradius log shows this:* Mon Mar 7 10:40:38 2022 : Debug: (46) eap_tls: (TLS) recv TLS 1.3 Handshake, ClientHello Mon Mar 7 10:40:38 2022 : Debug: (TLS) Ignoring cbtls_msg call with pseudo content type 256, version 0 Mon Mar 7 10:40:38 2022 : Debug: (TLS) Received 2 bytes of TLS data Mon Mar 7 10:40:38 2022 : Debug: (TLS) 02 46 Mon Mar 7 10:40:38 2022 : Debug: (46) eap_tls: (TLS) send TLS 1.0 Alert, fatal protocol_version Mon Mar 7 10:40:38 2022 : ERROR: (46) eap_tls: (TLS) Alert write:fatal:protocol version Mon Mar 7 10:40:38 2022 : ERROR: (46) eap_tls: (TLS) Server : Error in error Mon Mar 7 10:40:38 2022 : ERROR: (46) eap_tls: (TLS) Failed reading from OpenSSL: ../ssl/statem/statem_srvr.c[1661]:error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol Mon Mar 7 10:40:38 2022 : ERROR: (46) eap_tls: (TLS) System call (I/O) error (-1) Mon Mar 7 10:40:38 2022 : ERROR: (46) eap_tls: (TLS) EAP Receive handshake failed during operation Mon Mar 7 10:40:38 2022 : ERROR: (46) eap_tls: [eaptls process] = fail Mon Mar 7 10:40:38 2022 : ERROR: (46) eap: Failed continuing EAP TLS (13) session. EAP sub-module failed Mon Mar 7 10:40:38 2022 : Debug: (46) eap: Sending EAP Failure (code 4) ID 82 length 4 Mon Mar 7 10:40:38 2022 : Debug: (46) eap: Failed in EAP select Mon Mar 7 10:40:38 2022 : Debug: (46) modsingle[authenticate]: returned from eap (rlm_eap) Mon Mar 7 10:40:38 2022 : Debug: (46) [eap] = invalid Mon Mar 7 10:40:38 2022 : Debug: (46) } # authenticate = invalid Mon Mar 7 10:40:38 2022 : Debug: (46) Failed to authenticate the user In windows 7 client I looked for some information in the event viewer, but found nothing. Anyone else using this method, is having this problem? -- Elias Pereira