I am having problems setting up a self-hosted / FTP upload CDN for W3 Total Cache. The problem I am having is related to the SSL certificate for my website. I have an e-commerce website at http://sleepamazing.com for which I set up a subdomain static.sleepamazing.com for the CDN. When I setup W3 with this configuration, it didn't have any problems, except on the secured pages where my web browser informed me there were security certificate issues with some of the content. I talked with my web hosting company and they told me that their SSL certificate needed a dedicated IP and could only be used for the main domain, not subdomains. I checked around and there are certificates that handle subdomains, but they are very expensive. I do have another domain hosted by the same company as I host sleepamazing.com with that I thought I could use, so I set up the cdn in a subdirectory in that domain. But when I tried to configure the settings and test the FTP server to my other domain, I got the following message: "Test failed. Error: Unable to change directory to: /public_html/cdn/sa/".
Can anyone tell me a simple solution to this problem without costing me a fortune?
Thanks a million to everyone for your attention to this issue.