I can't edit my web - I get an IE authentication dialog and no credentials work and then I get the error: "Unable to open the Web http://server/appname. You are not authorized to perform the current operation". My account is a local admin on the server.
Background:
I'm using IIS6 on Win2003 R2 to host a few ASP.NET pages I've written. I created the 'site' (not sure of the terminology - is it a virtual directory?) with VS2005 in the Default Web Site (which has FPSE configured). The 'site' is configured to use an Application Pool which uses a network account, as it needs to query Active Directory. The test site was working and the next step was to add security - I need to check the group membership of the user running the pages so I decided to uncheck the "Enable anonymous access" box - "Integrated Windows authentication" is selected. Now, when I tried to access the pages, I got an IE authentication dialog which isn't what I wanted. I did some research and discovered that with AppPools using network accounts, you need SPNs - the server had two, one which used the server name and one which used the fully qualified DNS server name, so I set up two similar SPNs for the App Pool account. After this, the IE authentication dialog went away.
Today, I went to make a change to a page and tried to open the site with Visual Studio. Instead of it opening like normal, I got an IE authentication dialog. I submitted my network credentials but it came straight back. No other creds would work. When I cancelled it, I got the error: "Unable to open the Web http://server/appname. You are not authorized to perform the current operation". The account with which I'm logged onto the workstation is a local admin on the server.
The server is patched to a recent level. I've tried rebooting it and my workstation. I've tryed All tasks > Recalculate Server Extensions 2002 Web but I can't get past the IE authentication window that appears. None of my IDs work (including Domain Admin).