We have found that occassionally the web page could not be opened with browser on mobile device. We sometimes wait for a very long time before we get the error message that this web page could not be opened, but then we reopen the page and the normal page shows without any problems. We have checked the Nginx log files and found that the message "client timed out (110: Connection timed out) while SSL handshaking" showed many times. But it is info message, not the error or warn message. What could be the reason for this issue? Does it have something to do with HTTP2 or tls2? We have enabled the HTTP2. Here is some key configurations:


listen 443 http2 ssl;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;_______________________________________________
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