Board Thread:Support Requests - Getting Technical/@comment-32859852-20170901020436/@comment-168424-20170901174721

See Extension:DPLforum which has documentation for parameters used with the  tag. One of the parameters is count= that controls the number of entries displayed.

It would be useful for you to give a link to the page where you're trying to get this to work so we can actually see the wikitext code. Trying to guess what's wrong if there's a problem is inefficient and frustrating.