We looked into the issue further and noted the htaccess file forced SSL was redirecting to RewriteRule ^(.*)$ https://www%{SERVER_NAME}%{REQUEST_URI} [R=301,L]
We removed the www and all is fine now. Not sure why this issue has only occurred after the recent WP and Woo upgrades. Or possibly with the updated eWay plugin.
Thanks for your response.
Regards