When I launch an asp.net application, IIS Express launches duplicates of running sites

Question

When I start my asp.net application in debug mode, IIS Express launches two instances of each endpoint. This does not allow the site to start fully.

How do I solve this?

Answer 1

About the "duplicates"; If you look at the endpoints in your picture, you see that one is for http and one is for https . This is as expected.

I can also see that you are trying to open the https version (on port 44300) without specifying https://

Try opening http://localhost:8765 or https://localhost:44300