I'm having no problems connecting through IIS Manager, but any values I change in there, eventually get reset to the default value. Sometimes within an hour, sometimes in a couple of days, but it's really annoying. I have to keep changing my default document and the .net Trust Levels, and a few other settings. Why does it keep resetting and how do I stop it?
Are you uploading your files again on the server? Don't forget any values or settings you set on the IIS 7 module is recorded on the application's web.config file. So if you upload your site, you maybe overriding your web.config file.
I came here with the exact same problem. My 404 error handling kept resetting. Sure enough, I was overwriting the web.config. Thanks!