> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/server/knowledge-base/troubleshooting-articles/iis-web-site-logging.md).

# IIS web site logging

Here is the description of desired settings when we troubleshoot a performance/connectivity issue related to the client application.

### IIS Web Site Logging

1. Open IIS Manager and go in the ***Logging*** settings.

   <figure><img src="https://cdnweb.devolutions.net/docs/docs_en_kb_KB4290.png" alt=""><figcaption></figcaption></figure>
2. Click on ***Select Fields***.

   <figure><img src="https://cdnweb.devolutions.net/docs/docs_en_kb_KB4291.png" alt=""><figcaption></figcaption></figure>
3. We recommend that at the very least the following fields be selected:

   <figure><img src="https://cdnweb.devolutions.net/docs/docs_en_kb_KB4292.png" alt=""><figcaption></figcaption></figure>

### Application pool recycle

The application pool that is in fact running the instance can be restarted for a multitude of reasons. It may be useful to know when those recycles occur as well as the reasons. Go in the ***Application pools*** section of the IIS manager, then open the ***Advanced settings*** for your application pool. Enable all of the ***Recycle events***, it will create a log entry in the ***Windows Event Log***.

<figure><img src="https://cdnweb.devolutions.net/docs/docs_en_kb_KB4293.png" alt=""><figcaption></figcaption></figure>


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