I have an ASP.NET Application which utilizes ASP.NET Membership forms authentication. Periodically when hitting the site I get a windows authentication prompt to log in. When I hit cancel on the prompt I recieve a 401.1 error as well as an error to the event log (see below). The only way to fix is to do an iisreset, after which the site works as expected and utilized only my login.aspx page which is its intended behavior.
I'm not sure why I am getting the prompt. I have only had this issue on an XP Pro machine and this is the first of many installs that has shown this behavior. Has anyone else run into this issue before?
Here are some related log entries in the event log:
Event Type: Warning
Event Source: W3SVC
Event Category: None
Event ID: 100
Date: 6/25/2008
Time: 7:26:20 AM
User: N/A
Computer: SERVER
Description:
The server was u ...
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