What does peer failed to perform TLS handshake mean?

What causes a handshake timeout?

The other possibility is an issue with your OS.

Some OSes send a negative response to the TCP server at closewait to say that there will be no further handshakes. The handshake timeout in the IANA port standards section is used if and only if a timeout does not occur during all of 3 other phases of the handshaking process.

However, most likely this is due to a bug in either Microsoft or WinPcap in relation to this particular service. If you still see negative result from calling getsockopt() then I guess it may be a Windows issue.

What does peer failed to perform TLS handshake mean?

What does the error "Peer Certificate is invalid or does not match the target hostname" mean?

We tried to install a web server with this error in it. "Peer certificate failed to authenticate against given host's name. The certificate has been checked and is fine."
The server was installed and it worked fine for some time. Then the problem appeared. No matter which browsers (including the webbrowser of windows 7) I use, the web browser can not connect to the web server and says that "the server could not be reached."
But the web browser can load websites. And we also installed one domain name for my friend's personal use and there is no problem when he visits the website.

Could anybody help me with this? I guess it's because of problems with the SSL certificate, but how do I solve this? And I have another questions: I have only 1 ip address and 3 ipsec tunnels. I will connect the server and clients to different ip addresses by using static IP addresses, so do I need another ipsec tunnel? Does this make a problem if my pc is behind the firewall? The peer certificate could either be invalid or it doesn't match the target hostname. A quick glance at the error message and your question suggest that the certificate is invalid, so it's probably an issue with the SSL certificate. Peer certification is a client certificate that you supply when connecting to a remote server. In HTTP, you usually have a standard SSL certificate that is used to verify your website's SSL certificates. This standard certificate will be trusted by any browser as long as your website can verify the issuer of the certificate. If the certificate is signed by someone else, your client will always get a certificate error.

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