I have a variant of this problem.
When I run my bbpress with a url through a directory under my domain (drewstylz.com/forums), using permalinks works ok. But when I try to run bbpress through a subdomain url (forums.drewstylz.com), the permalinks don’t work at all. They are generated correctly but clicking on any permalink only brings me to the forum home page. Running bbpress without permalinks does still work however.
I’ve tried following the FAQ but neither of the options have worked. I do have wordpress installed in the root directory of my domain and bbpress in a subdirectory so I’m thinking that may be the issue but I don’t know which part would be affecting it. I’ve also tried renaming the .htaccess file in my root directory and then following the suggestions from the FAQ but when I disable the .htaccess file in the root folder, clicking on the permalinks just brings me to a “url not found” page.
Does anyone have any suggestions on what I can do?
I can post my .htaccess files if necessary. I’ve left my current bbpress configuration with the problem if anyone wants to take a quick look.
http://forums.drewstylz.com/