I'm having an issue where no matter what database server I use, or which connection parameters I enter I always get the following error:

Error Using This Database Connection!
Server Response : invalid data source name

I can't seem to get past this error. I've reinstalled the extension, checked to make sure I can access the database in other ways, file permissions, etc.

So I disabled my .htaccess file to see if it had any effect on this issue and it completely resolved it. My .htaccess file only contains entries to force www and https. I think it caused the issue because of the dreamweaver testing server and the database connector... here's the contents of the .htaccess file:
-------------------
RewriteCond %{HTTP_HOST} !^www\.mydomain\.com [NC]
RewriteRule ^(.*)$ www.mydomain.com/$1 [R=301,L] # include 's' here to force ssl in addition to www

RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ www.mydomain.com/$1 [R=301,L]
-------------------

Unfortunately I still need these entries to force a secure, www connection. If I have to I'll just disable it when working in dreamweaver or reapplying database connections then re-enable it. If there is any workaround to this please advise.

Thanks.

Hello Shane,
Is the htaccess file only causing issue, when you are trying to connect in DW? Is the page working fine when uploaded to the server?

I have this same error, but unfortunately disabling the .htaccess doesn't work for me.

Has any progress been made on the investigation/resolution?