IIS Server Audit Event: 5055

5055: WAS event WMS site application pool invalid error

The IIS World Wide Web Publishing Service is responsible for managing the HTTP protocol and HTTP performance counters. An IIS web site is a unique collection of web pages and web applications that is hosted on an IIS web server.

Event 5055 is generated when a particular site was disabled because the application pool defined for the site is not a valid application pool. The site is specified in the event log message.

How could you resolve this situation?

The application pool is not valid. Hence set a valid application pool.  

IIS Server Log Analysis Tool

EventLog Analyzer is a comprehensive log management software with which you can centrally collect, analyze, and manage logs from all the different log sources in your network. You also get reports and alerts on your network security, making it a power-packed IT security tool.