If you are having trouble establishing the connection, double-check your credentials.
It is possible to access your storefront while still failing to connect through Dext Commerce. If this is the case, it is likely that you have User level permissions in WooCommerce. Ensure that you are using an account with Admin level permissions in order to establish the connection between Dext Commerce and WooCommerce.
If the issue still persists, be sure to sign out of WooCommerce in your browser as Dext Commerce will prompt you to login again during the connection process.