Why did I get result code -12?

During the attempt to process the transaction, the connection between your hosted server and PayPal payment hosted servers failed.

Here's how to resolve this issue:

  1. Check PayPal Manager to determine whether the transaction has posted. If it hasn't, try again.
  2. If you're using the Payflow SDK, try the following:
  • Increase the timeout parameter value to 90
  • Investigate the issue internally with packet sniffer software
  • Remove memory- or resource-intensive applications running on the same box or create a dedicated server for the Payflow Pro SDK


If you're using a UNIX environment or have an open source tool (such as Cygwin), you can try the following commands to check connectivity:

  • Run command line using cURL:
    curl -d -v https://pilot-payflowpro.paypal.com
  • Run command line (OpenSSL):
    openssl s_client -connect payflowlink.paypal.com:443

More ways we can help

We'll use cookies to improve and customise your experience if you continue to browse. Is it OK if we also use cookies to show you personalised ads? Learn more and manage your cookies