Where did my IIS7 server go? Another common “what the hell just happened” error is the plain 5. If you regularly troubleshoot IIS errors, manage Windows Servers, or tune ASP. NET performance, definitely check out the demo at www. What is it? This error is generated by the WAS (formerly W3. SVC) service, which is responsible for creating IIS worker processes to handle incoming http requests. When WAS fails to create a worker process, it will generate this error. Why does it happen? There are a number of reasons why WAS may fail to start an IIS worker process. Windows Cache Extension for PHP. Run IIS Express without installing IIS; How to remove Server Name 'Microsoft-IIS/8. Troubleshooting 503 'service unavailable' errors. If you regularly troubleshoot IIS errors, manage Windows Servers. 64-bit Windows has been around. I already tried using the iis worker process that enables 32 bit and used the. Error 503 Service Unavailable when you browse Windows. AppPool has been disabled. Program: c:\windows\system32\inetsrv\w3wp.exe. Describes how to troubleshoot an IIS process that stops. These include invalid application pool configuration, failure to create the process due to incorrect application pool identity settings, bad IIS configuration that causes the worker process to fail to initialize, or a process crash due to application logic. I will list the most probable reasons and how to investigate / fix them below. How do I get rid of it? Let. This prevents application crashes from taking down the machine by going into a start process / fail loop when a persistent error exists. By default, Rapid Fail Protection is set at 5 times in 5 minutes. Once the application pool that contains your application has been stopped, all requests to applications in it will result in that plain 5. The next step is to check the event log for information about why your worker process could not be started. ASP.Net Worker Process and ISAPI. Microsoft Internet Information Server). Unable to Start Debugging on the Web Server. Error: Unable to Start Debugging on the Web Server. Worker process crashes after application pool recycle. 1 Process ID 3188 Process Image c:\WINDOWS\system32. IIS worker Process continually. STEP 2: Check event log. If IIS inside the worker process fails to initialize, or WAS is unable to create the worker process, it will log an event to the . Look for error events from IIS- W3. SVC- WP source. In this case, the IIS worker process could not initialize because it failed to load a module DLL (the path of which I . In my case, the IIS worker process had the initial error, and WAS eventually disabled the application pool after triggering rapid fail protection, leaving the following in the . If not, rise and repeat. In the case of an application crash, you may need to debug the worker process to get to the bottom of the error. You can read about this here: Troubleshooting IIS7 5. Service unavailable” errors with startup debugging. You can find the first post about the timeouts and “server not found” errors here: Where did my IIS7 server go? Troubleshooting “server not found” errors. Also, you can find a post about general IIS7 error diagnostics here: Troubleshoot IIS7 errors like a pro. I hope you find that this takes some of the mystery out of these problems, and helps you get going quickly when you hit this on your server. I will cover some other useful troubleshooting techniques in future posts – as always, feel free to suggest topics you care about.
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