We are aware that PayPal rolling out upgrades to make use of SSL/TLS SHA256 for security purposes. Today i met with strange issue on PayPal Sandbox mode for my PayPal Adaptive Application even though my site follows HTTPS. To add further, same application works fine in Production(not sandbox).Please enlighten me, was this an issue in Application or Rollout issues? same issue reported in PayPal community but no response https://www.paypal-community.com/t5/About-Payments/Adaptive-payment-api-is-sending-Proxy-error/m-p/1091510
The proxy server could not handle the request AdaptivePayments/Pay
Reason: Error during SSL Handshake with remote server
07-27-2016 @ 13:43:35 - Error in generate payment key: Array
[headers] => Array
[date] => Wed, 27 Jul 2016 13:43:35 GMT
[server] => Apache
[connection] => close
[http_x_pp_az_locator] => sandbox.slc
[paypal-debug-id] => 8913861a40cd4
[set-cookie] => Array
(
[0] => X-PP-SILOVER=name%3DSANDBOX3.APIT.1%26silo_version%3D1880%26app%3Dadaptivepaymentspartaweb_api3t%26TIME%3D2277152855%26HTTP_X_PP_AZ_LOCATOR%3Dsandbox.slc; Expires=Wed, 27 Jul 2016 14:13:35 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
[1] => X-PP-SILOVER=; Expires=Thu, 01 Jan 1970 00:00:01 GMT
[response] => Array
(
[code] => 500
[message] => Proxy Error
)
[cookies] => Array
(
[0] => WP_Http_Cookie Object
(
[name] => X-PP-SILOVER
[value] => name=SANDBOX3.APIT.1&silo_version=1880&app=adaptivepaymentspartaweb_api3t&TIME=2277152855&HTTP_X_PP_AZ_LOCATOR=sandbox.slc
[expires] => 1469628815
[path] => /
[domain] => .paypal.com
[secure] =>
[httponly] =>
)
[1] => WP_Http_Cookie Object
(
[name] => X-PP-SILOVER
[value] =>
[expires] => 1
[path] => /AdaptivePayments/
[domain] => svcs.sandbox.paypal.com