How to keep the /blog slug even in single post slug

Question

I have a simple website on wordpress (latest version), assume example.org.

I wanna have the user posts at something like example.org/blog/username/posttitle.

So I need some levels: 1) example.org/blog (main blog page) 2) example.org/blog/username (username archive page) 3) example.org/blog/username/posttitle (single post page)

I've seen a lot of old solutions that are mainly the same, but even if i set the permalink structure as /blog/%author%/%postname% or simply /blog/%postname% it doesn't work.

I mean, it works, but when you visit a right generated url I get a 404.

Solutions? Cheers,

Answer 1

Try this in your premalink setting page: Use Custom structure and put in this /blog/%author%/%postname%/ into the field. That should do the trick.