You can connect Dreamweaver with the cPanel user name and password please read the settings carefully in following snap shot and follow it and if you are still having any problem than its better if you contact your hosting provider as every hosting provider having different rules set on there server like few hosting account do not allow default FTP account which is cPanel user name due to that in that case you need to create FTP account for your hosting account from cPanel.In that case refer following tutorial to configure new FTP account from your cPanel
You can also refer following tutorial “How to configure new FTP account with Dreamweaver?”
