[@hamma Member 15 years, 10 months ago]

Okay, looks like I figured out the issue.

Nothing at all like I thought.

I followed a few things from this guide: http://wpbbpthemes.org/integration/

I used the WordPress MU settings rather than the standard WordPress settings in the BB_config & WP_config files both.

So basically I added to the beginning of each of those:

define( ‘COOKIEHASH’, ‘4ec2be76cfe2b6c707014602c3cc078f’ );

define( ‘SITECOOKIEPATH’, ‘/’ );

define( ‘COOKIEPATH’, ‘/’ );

instead of just:

define( ‘COOKIEPATH’, ‘/’ );

Then I verified that ALL 8 of the define lines from the WP_config file, both the Key & the Salt were in the BB_config file (for some reason only had 4 of them, the Key files and no Salt files).

Problem Solved.