IIS 应用程序池停止

Question

I'm working on a web app on my local machine and have an application pool created with the identity set to my own credentials. Username and Password are correct.

Every time try to access the website, I get:

HTTP Error 503. The service is unavailable

And the application pool stops.

Everything I've found online is related to a password expiration but that isn't the case here.

Edit: When the application pool stops, if I right click on it and select 'Recycle' I get this:

Answer 1

What happens if you use "Local System" or "Application Pool Identity" ? Also, do you have shared configuration enabled ?