Using sandbox - The request was aborted: Could not create SSL/TLS secure channel.

[OlivierAlbertin]

I need help, my sandbox api calls where working fine as of jan 18, 2016, and then they have just never worked since then, i didn't change anything i've tried on 2 different servers, with same code. Has pay pal sand box changed, but it's worked flawless in the sandbox before. Can anyone give me any help. ??

I use UCommerce system with their PayPal Provider.

I make some test in localhost

The API connect to :

CONNECT api-3t.sandbox.paypal.com:443 HTTP/1.1
Host: api-3t.sandbox.paypal.com

[johno-eal]

Any news on this?

I am experiencing the same issue. Sandbox was working a couple of weeks ago and now getting the same error - the request was aborted: Could not create SSL/TLS secure channel. Using a .net framework 4.0 client running Windows 8.

Thanks

John

[SuzyQ2]

I've run into this issue while developing a storefront in WordPress with the LifterLMS plugin.  Research has provided clues but no solution.  

Here's what the Paypal and plugin support have told me:
"Verify Support for TLS 1.2 and HTTP/1.1 With Your Webhost To avoid disruption in service, you must first verify if your web server supports these security protocols. Contact your web host and find out if your server supports TLS 1.2 and HTTP/1.1. If the answer is no, you will need to work with your web host to enable support. In general, the host only needs to “upgrade OpenSSL to the latest stable version”.

My hosting says all is up to date, and my SSL certificate is good.  When attempting to process a transaciton in the sandbox,  I get:

WP_Error Object
(
    [errors] => Array
        (
            [http_request_failed] => Array
                (
                    [0] => SSL connect error
                )
        )
    [error_data] => Array
        (
        )
)

What do I try next?  I really don't want to test on a live account. 

[EduardoN]

Does anyone has a solution for this? This seems to be related to the 2016 merchant security upgrade PayPal is rolling out. My hosting is in Azure that supports TLS 1.2 and HTTP/1.1 but my problem is when testing my solution in my local machine using the sandbox not in production. My app runs on .NET Framework 4.5 that supports it. Any idea?

[EduardoN]

Well, I found the solution.

Check this StackOverflow answer:

http://stackoverflow.com/questions/34945002/the-request-was-aborted-could-not-create-ssl-tls-secure-...

Cheers.