After updating to Magento the below mentioned issues cannot install any extension from connect manager:

Unknown cipher in list: TLSv1 failed error.


2 Answers 2


I experienced the same problem when trying to use the command line to perform updates.

I was able to fix this by commenting out line 377 of downloader/lib/Mage/HTTP/Client/Curl.php

Old code:

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

New Code:

/**   Commented out to fix TLSv1 Failed Error
*        $this->curlOption(CURLOPT_SSL_CIPHER_LIST, 'TLSv1');

I do not have a good explanation to give, but this seems to work.


It's not safe to use Magento connect for installing extension , click this link for more information.

in the worst case, if you want immediate solution , Alternatively you can install the extension through FTP (like FileZilla). You can paste the extension key in this unofficial link and you can download the extension files. Let me know if you find any problems in this.

Note : As this is unofficial 3rd party site, there is no guarantee about security

  • 1
    I agree with the fact that it's not really save to install extensions via Magento connect, directly on a live environment, but how is it safer to download an extension via a 3rd party "un-trusted" website? I don't question the morality of freegento, but as a principle, this is not safer.
    – Marius
    Sep 16, 2016 at 7:27
  • @Marius agreed 100 % , updated the answer.... Sep 16, 2016 at 7:38

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