3565363 - Administration Console of HANA Web Dispatcher returns 404 Not Found status

• The administration console of HANA Web Dispatcher returns a 404 error when accessed via URL.
• The error message displayed is "404 - Not found. We could not find the resource you're trying to access. It might be misspelled or currently unavailable."
• The HANA Web Dispatcher is installed on a private network, for example on AWS (HANA Express Edition).
• The issue arises when trying to configure a standalone Web Dispatcher to enable HANA Web Dispatcher access via the internet.

In the SAP Web Dispatcher trace file (dev_webdisp) the below entries can be seen during issue reproduction:

[Thr 140458022823488] <<- ERROR: SapSSLSessionStartNB(sssl_hdl=0x7fbeee4b4800)==SSSLERR_ALERT_CERTIFICATE_UNKNOWN
[Thr 140458022823488] *** ERROR => IcmConnInitServerSSL: SapSSLSessionStartNB returned (-127): SSSLERR_ALERT_CERTIFICATE_UNKNOWN [icxxconn.c   2020]
[Thr 140458031310400] *** ERROR => HttpAdmHandleReq: Authorization via backend failed. Unexpected status code: 404 [http_adm.cpp 1982]

[Thr 140458021762624] Sat Jan 18 08:43:44:977 2025
[Thr 140458021762624] *** ERROR => HttpAdmHandleReq: Authorization via backend failed. Unexpected status code: 404 [http_adm.cpp 1982]

• Operating System independent
• Database independent
• SAP NetWeaver
• SAP Web Application Server for SAP S/4HANA
• ABAP Platform 
• SAP Web Dispatcher

HANA Web Dispatcher, 404 error, administration console, AWS, HANA Express Edition, XS Classic, hdbupdrep commands, sap.hana.xs.wdisp.admin::WebDispatcherAdmin, SapSSLSessionStartNB, SSSLERR_ALERT_CERTIFICATE_UNKNOWN, HttpAdmHandleReq, Authorization via backend failed, Unexpected status code: 404 , KBA , BC-CST-WDP , Web Dispatcher , Problem