Do your blog post permalinks work with BuddyPress disabled?
@rogercoathup: Yes, it worked perfectly. But once I turn on BuddyPress, without any other plugins active, instantly permalink does not work.
On the permalinks: what settings do you have for your permalinks (in wp-admin … settings)?
Please post as much information as you can, e.g. the url of some of the pages that are failing.
On the activity stream: only new blog posts (not existing ones) should show up in the stream. What happens if you create a new blog post, does that show up?
Recently I tried, with only BuddyPress are active, blog posts can appear in actifity stream. So maybe a plugin causes it does not appear. However, the permalink still can not work unless the default permalink. Permalink I now use is “/%author%/%postname%/”. For more details, you can see on my site.
Yes, I can see there is a problem with permalinks for your main blog. Although, the permalinks in sub-blogs seem to work fine.
What happens if you de-activate your theme, and try using the default BuddyPress theme… do they work in that case?
What type of server are you on? Can your site write without problem to your .htaccess file?
Exactly the same problem still appear even if I use the default theme. Actually, the theme that I use now just a child theme. Without. .htaccess, instead an error that appears.
The server I’m now on is Linux Shared Hosting (cPanel).
Perhaps it was rather odd, because this problem did not appear on my other site.
Do both sites have the same settings in the .htaccess file?
Are the permissions on both .htaccess files the same (644)?
I can’t think of anything other than that…
…maybe one of the server experts can pick up on this one?
Yes, both have the same htaccess settings, including the permissions.
Like you, I have no other thoughts than those already discussed. Therefore I plan to refresh the installation.
Thanks, @rogercoathup, for any inputs.