Problem with Tls13

[thanh858036]

i use netframework 4.8 and set httpRequest.SslProtocols = SslProtocols.Tls13 and it error Win32Exception: The client and server cannot communicate, because they do not possess a common algorithm

[grandsilence]

Is server supports TLS 1.3?

[thanh858036]

Is server supports TLS 1.3?

yes website use TLS 13 manga1001.com

[cod3d]

same issue with instagram

[grandsilence]

Windows 10 2004 Release or lower? NT Kernel should support TLS 1.3.

[thanh858036]

Windows 10 2004 Release or lower? NT Kernel should support TLS 1.3.

i used win 10 ver 1909

[cod3d]

Fixed already.
I changed target framework to 4.8 and set SslProtocols here: click
to
public SslProtocols SslProtocols { get; set; } = SslProtocols.Tls | SslProtocols.Tls11 | SslProtocols.Tls12 | SslProtocols.Tls13;

Then go to click
and changed to
sslStream.AuthenticateAsClient(address.Host, new X509CertificateCollection(), SslProtocols, true);

also I changed from click
to
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12 | SecurityProtocolType.Tls13;

After all this I recompiled the Leaf library and it works fine!

[thanh858036]

Fixed already.
I changed target framework to 4.8 and set SslProtocols here: click
to
public SslProtocols SslProtocols { get; set; } = SslProtocols.Tls | SslProtocols.Tls11 | SslProtocols.Tls12 | SslProtocols.Tls13;

Then go to click
and changed to
sslStream.AuthenticateAsClient(address.Host, new X509CertificateCollection(), SslProtocols, true);

also I changed from click
to
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12 | SecurityProtocolType.Tls13;

After all this I recompiled the Leaf library and it works fine!

only worked with instagram not work with my site
Unable to establish SSL-connection with HTTP-server

[Zeokat]

Same problem here, seems that the error is now present in many websites. Tryed to investigate the issue but i can't find how to solve this.

[Zeokat]

Maybe you can vote up my question at stackoverflow to try to solve this issue: https://stackoverflow.com/questions/64848260/problem-with-https-request-and-sslstream-on-some-sites