This is usually a server redirect causing the site URL from your testing server in dreamweaver to not properly reflect the final URL.
So if you have your URL in your Dreamweaver testing server set to http://www.yoursite.com and if you put that in the browser it goes to https://yoursite.com then it wouldn't work because of the redirect. Try to copy/paste the url in your Dreamweaver testing server into a browser and then copy/paste it back to your Dreamweaver site definition to make sure that it is set to the final destination url. That will usually do the trick.
Did this help? Tips are appreciated...
