Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

We had an IIS 6.0 Rapid-Fail Protection occur during testing of our ASP.NET web application. This issue appeared to be introduced by code that I wrote.

How do we determine what caused it? There is nothing interesting showing up through ASP.NET health monitoring.

share|improve this question
up vote 3 down vote accepted

Event Viewer is the first place to look, but may not have the answer. The next thing to check are the IIS logs. You may be able to find patterns in usage prior to the failure.

If you can't find answers with either of those then try out Debug Diag. It's a bit more work to find the answer, but likely that you'll be able to with a big of digging.

share|improve this answer
DebugDiag helped me diagnose the cause. Thanks! – Matthew Rodatus Jun 22 '11 at 17:36

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.