I had an issue where logging in from the app disconnected.  The error that kept popping up was [date time stamp] [warning] <0.1722.0>@ejabberd_c2s:process_terminated:304 (tls|<0.1722.0>) Failed to secure c2s connection: TLS failed: Failed to find a certificate matching the domain in SNI extension: error:1408A0E2:SSL routines:SSL3_GET_CLIENT_HELLO:clienthello tlsext I had thought the issue was to do with a TLS error.  I wanted to run TLS 1.2 only.  To do so: 1....