.htaccess command to stop cache on forum folder?

[THG]

Only on VBulletin side.

I opened a ticket with VBulletin support and they told me it's my caching in my .htaccess file that's causing the issue and to somehow block the forum folder to prevent my login issue.

I disabled it to see what would happen (I'm using the WordPress plugin WP Super Cache) and it got a little bit better. I can login to VBulletin, click around and I stay logged in. However, as soon as I go back to the homepage it appears that I'm logged out. I have to hit Refresh in order to show that I'm logged in.

--------------- Added [DATE]1419991207[/DATE] at [TIME]1419991207[/TIME] ---------------

Completely, removed WP Super Cache until I get this resolved. The issue still happens. So it's definitely not the caching plugin.