What should I do when an error "Can't connect to URL" occurs?

What should I do when an error "Can't connect to URL" occurs?

If this error occurs:

Check whether API2Cart IP is in the server’s firewall white list and restart the requests. (How to add IP to white list)
Your server’s characteristics isn’t suitable for particular shopping cart. Optimize your server configurations to establish proper work.
Increase the server’s RAM

Posted in: Troubleshooting