make shure the settings are correct:
local info//
site name: name
local root folder: c:\xampp\htdocs\
http address:
http://localhost/
remote info//
access: local/network
remote folder: C:\xampp\htdocs\
testing server//
server model: php/mysql
access: local/network
testing server folder: C:\xampp\htdocs\
url prefix:
http://localhost/
the rest of the settings are not required, just leave them as they are.
accept internet access for dreamweaver in your firewall