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I experienced an identical issue twice now on two separate installs on two separate environments. The first was on a client's production environment while I was trying to install an extension using Magento Connect. When I plugged in the extension key in step 2, I was presented with this:

error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure

I shook it off and just installed the extension over FTP and continued about my day thinking something might be wrong with Magento Connect.

I then experienced the same issue with a clean install of 1.9.1.0 on a testing server I setup. Unable to proceed with extension install due to the same error.

Regarding SSL: The client's site has a fully verified SSL certificate. My testing server certificate was self-signed.

At this point I'm really just curious as to what causes it as I am able to proceed with FTP/SSH installs of my extension.

Additional Notes: Both instances were using Magento CE 1.9.1.0.

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Take a look at Fix Magento Error:14077410:SSL Routines:SSL23_GET_SERVER_HELLO:sslv3 Alert Handshake Failure!

You can also just manually editing downloader/lib/Mage/HTTP/Client/Curl.php

After: $this->curlOption(CURLOPT_SSL_VERIFYHOST, 2);

add: $this->curlOption(CURLOPT_SSL_CIPHER_LIST, 'TLSv1');

  • Worked like a charm. Thank you! Why does it affect some servers and not others? Any idea? – sparecycle Feb 23 '15 at 21:17
  • All servers should be disabling sslv3 support due to the POODLE exploit back in October 2014. – seanbreeden Feb 23 '15 at 22:48

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