We have found that occassinally our web page could not be opened on mobile devices. We use tcpdump to analyze the data packets and found the issue maybe has something to do with the TLS. There is a data packet in which the client side sent alert message to server then server side closed the connection. The description of this alert message is "close notify". Then client side established another ssl connection with server and received the certificate packet from server,but after 30 seconds, the client side closed the connection. I don't why such a process could happen. What is the problem in this TLS communication? This issue could not reproduce in PC web browser.
I have to add some information. I found through the data packet that when the problem occurred, there were two TLS connections established, and one of the connection was closed by client by sending "close notify" to server. Another connection was also closed by client 30 seconds later when client side received the certificate information.