[gerikg]

Did you….

-have the Cookies & Salt all the same? example BBpress side define('BB_AUTH_KEY', 'ABCDEF'); WordPress side define('AUTH_KEY', 'ABCDEF');

-include $bb->bb_xmlrpc_allow_user_switching = true; in bb-config.php before the ?>

-install BBpress intergration plugin to get the Hash and cookie information to paste in wp-config.php after the < ?php ?

-Paste the same cookie information you did on the step before in bb-config.php (without the Hash line) after the < ?php ?

-Enable Pinbacks, trackbacks, and XML-RPC on BOTH WPMU & BBpress?