Setup Form based Authentication with SSL enable

Hi,

I have created a new Web Application. It has 2 site collections in it. I also enabled NTLM and FBA, all seems to be work fine.

In order to make it available to outside, I would like to enable SSL as well. I extended the WebApp and SSL works ok. The problem is FBA not working for SSL.

When I goto User and Permission and click on FBA user management, I got the following " A membership provider has not been configured correctly. Check the web config setting for this webapp"

I review all the setting from IIS and all looks fine. FBA via http work normal.

Any idea ?

Please and Thank you.

Mo