Why Schannel fails to receive handshake from the server?

windows git ssl openssl tls1.2
Selman Genç picture Selman Genç · Sep 28, 2017 · Viewed 19.6k times · Source

When I'm trying to pull from our git server I get this error:

fatal: unable to access 'xxx': OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to xxx

When this happened before I was able to solve it by simply restoring the system but this time my system restore points got deleted for some reason, and I can't do that either.

So this happens because something in my system settings related to SSL changes and I don't know why.

I have tried installing git to use windows cert. store instead of OpenSSL and I got this error:

fatal: unable to access 'xxx': schannel: failed to receive handshake, SSL/TLS connection failed

Same problem, different error message. The server is not sending back a hello message after the client hello. I thought this might happen because none of the cipher suites that I'm sending the server in the client hello message are supported by the server. So I've tried configuring a group policy and put the cipher suite the server is using first in order. But it didn't make any difference.

I am able to connect the git server's site through the browser. So my question is, what can I do to solve this problem?

Answer

James picture James · Jan 15, 2019

In my case, I changed the .gitconfig from 

[http] sslbackend = schannel

to 

[http] sslbackend = openssl

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