Hi, we are using OpenSSL to deploy DTLS-SRTP, Ref: http://www.creytiv.com/doxygen/re-dox/html/tls__udp_8c.html it works really well, thanks for the good code. one scenario that does not work so well, is when DTLS is running in an environment with packet loss. for example, we get this error message: 140735307322128:error:1411B09F:SSL routines:ssl3_get_new_session_ticket:length mismatch:s3_clnt.c:2183: any hints of where I should start looking ? /alfred