JFBConnect Facebook need to reauthenticate every page refresh

1. It is a joomla core feature. You can select a checkbox when you make a new user account.

Gotcha. Then that isn't the problem then as normal users who register wouldn't have to change their password.

2. Disabled the caching functions but this the same problem occured.
3. For both JFBconnect and standard joomla login.

If it's happening for both JFBConnect and standard Joomla users, it means the issue isn't directly related to JFBConnect. Something else is causing the user to be logged out.. or there is still some caching somewhere.

I'd recommend navigating to another page where it seems like you're logged out and then do a hard refresh (usually CTRL-F5 or CTRL-R) of your browser. That will force it to reload the page from the server. That can help narrow down some forms of caching if it shows you are logged in after you refresh.

There are many ways to cache, both within Joomla (with extensions) and outside (Apache configuration, .htaccess, 3rd party caching services). It's always possible there's something else that could be causing the problem.

Beyond caching though, I don't have any good suggestions. As noted, this is something outside of JFBConnect, so it's difficult to guess what may be the cause on your site.

I hope that helps get you going,
Alex