You could ask your host for your password and username to make
sure it's correct.
You could try connecting to your FTP with a different software,
try using filezilla, i never use dreamweaver as an FTP,
using filezilla just seems alot easier to me
in addition to that what LD wrote about password etc and filezilla: I only can agree! I use filezilla with great success, so here is the link to get to know it:
Try toggling Passive and/or Secure FTP on/off. Your web host might have changed upload requirements to improve security.
Another thing to check is your Anti-virus and Firewall settings. If they are too restrictive, DW may not have permission to connect to the remote server.
"An FTP Error has occurred - cannot make connection to host. Your login or password is incorrect. Please check your connection information."
I'm seeing this same problem from a lot of different people over the span of 4-5 years as I have read a number of posts that came up in Google and in this forum. None of those had resolutions.
I also am experiencing this problem. I did nothing different. I have been uploading to my website for years using CS4 and for months using CS5 without any problem. I checked my connection information in my Site tab/Managing Sites/Edit... and even tested it. It works there. So what is the disconnect?
After 4-5 years of people experiencing this problem, has anyone found a solution?