[SOLVED] - Easify Server WooCommerce plugin can't validate credentials...
If you enter your Easify Server WooCommerce plugin subscription credentials into the Easify plugin settings page, and get an error that the username or password is incorrect even though you are sure you entered the correct credentials, it is possible that your web host is blocking outbound traffic from your WordPress website.
Some hosts (especially free hosts) block outbound TCP ports from your website.
Make sure that outbound TCP Port 443 is open so that the Easify plugin can contact the Easify Cloud Servers for authentication.
Also ensure that TCP Port 1234 Outbound is opened by your hosts to allow the Easify plugin to communicate with your Easify Server. Also note that for Easify Cloud Hosted Servers you may need to open TCP Ports in the range 1234 to 1270, to determine which port your Easify Cloud Server connects to enable logging in the Easify plugin and examine the Easify plugin log file.
Click here for more information about Easify Server WooCommerce plugin logging - https://www.easify.co.uk/Help/ecommerce_woocommerce_plugin_troubleshooting#plugin-logging
Regards - Richard (Easify Developer)