We kick started an Agile development team with a Sprint 0, that had some architectural runway tasks in it (like setting up the environment, etc.). We planned a Sprint 1 with 2-3 user stories (there are 4 devs on the team). At the end of Sprint 1, none of the stories were closed. Some of the arch. tasks from Sprint 0 were dragged in, and they weren't closed either. We started Sprint 2 with some user stories, and we're mid-way through it, and no stories have been closed. I'm at a loss at what's happening, and would like to identify the problem of why we're not producing any value. Obviously the team is working on something, and claims there are no blockers during standup.
What would be an effective way to problem solve this issue with the team? When I asked them during Sprint 1 retrospective on what we can do to improve, they didn't really have any ideas. I would like to tease out some ideas from them.