IIS Debugger

We are having a lot of problems with IIS lately. I think most of the problems is from application hangs from DefaultAppPool. So I installed IIS diagnostics toolkit latest Version.

I'm trying to run Debug Diagnostics tool v1.0.

When I make an application rule I have to add URL's to monitor on our company web.

THe only thing is when I test the URL in debug diag 1.0 it gives me a status code 401 and says unauthorized....

I assume I have a permissions problem but I can't seem to get it to work.

Any IIS studs that use IIS toolkit here?

I've tried to tweak all the settings in IIS that I can for default app poll its better but we still are having problems with it.