While accessing an SAP system through an SAP Web Dispatcher, a "503 Service unavailable" error is seen in the browser.
The error message "Server is not responding to ping requests: Server state currently unknown" is observed at the Web Dispatcher Web Admin UI, while monitoring the application servers of the affected system.
The backend system is operational and accessing it directly (bypassing the Web Dispatcher) works.
- SAP Netweaver release independent
- Client/Server Technology - ICM (Internet Communication Manager)
- Client/Server Technology - Web Dispatcher
KBA , BC-CST-WDP , Web Dispatcher , BC-CST , Client/Server Technology , Problem
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