Dreamweaver FTP Limited Support

Dreamweaver's built-in FTP client is known to be buggy, especially when using secure connections. We suggest using FileZilla or some other standards compliant FTP application. 

Dreamweaver End of Life

 Desktop versions of Dreamweaver Cs 4.x and 5.x are no longer maintained by Adobe. They offer Creative Cloud editions which still have known FTP issues. The documents below are meant for those adventurous souls that have older versions and would like to see if it still works.

Problem

Sometimes Dreamweaver will give a message:

"Dreamweaver cannot determine the remote server time. The Select Newer and Synchronize commands will not be available."

Reason

This is because Dreamweaver cannot write a file to your hosting account which it needs to create in order to determine the time on your server. This is typically because your account is over it's allotted disk quota, or, there are permissions problems on your site. More often than not, it is because your account has exceeded it's quota.

Solution

Delete unneeded files or upgrade to the next hosting package so that you have more space available.

If you have enough disk space, you may want to check that you have enabled "Use Passive FTP" in your Dreamweaver remote site definitions. Sometimes Dreamweaver file transfers / commands will fail if passive mode is not enabled.

Source

Adobe.com : Troubleshooting FTP issues:

To get the server's time stamp, Dreamweaver creates and deletes a folder named XYIZNWSK. There may be server permissions problems that don't allow Dreamweaver to create or delete folders. For more information on this issue, see Synchronize and Select Newer options are not working correctly (TechNote tn_14413).