It could be nothing to do with you. They are not looking at just you as a candidate, but several others at the same time. When interviewing, hiring managers loo

It could be nothing to do with you. They are not looking at just you as a candidate, but several others at the same time. When interviewing, hiring managers look at a few factors including technical knowledge/competence, cultural fit and budget. You may fit all the requirements, but another candidate could have made a better overall impression. It doesn't hurt to call the recruiter to get some feedback.