Server Local Users only allowed access to my site, please help

My deadline to have my site up is soon, and I can't figure out why the server is only letting it's local users access the site's directory! IE is showing me this box before I can even connect to the site:

I have tried everything I can think of, enabling/disabling Anonymous access, integr开发者_运维知识库ated windows authentication, messing with < authorization >/< identity > tags in web.config and I can't figure it out! Has anyone ran into this problem before and know how to fix it?? BTW, this is an intranet/internal site only.

Sorry if not enough info, I need to have this up in the next 20 min ><; I'll provide any additional info needed..

This is most likely a NT file permissions problem. IUSR_ needs to have file system permissions to read whatever file you're requesting (like /inetpub/wwwroot/index.htm).

Turn of all authentication except for Anonymous.

Other authentication types direct the browser to authenticate even if anonymous access is configured.