3339695 - SAP Web Dispatcher cannot be started with Running (init) status

• SAP Web Dispatcher cannot be started with Running (init) status: 

--------------------------
sapcontrol -nr <Instance number> -function GetProcessList: 

sapwebdisp.EXE, Web Dispatcher, YELLOW, Running (init)
--------------------------

• Check config result: 

------------------------------
sapwebdisp pf=<full path of the web dispatcher profile> -checkconfig: 

SAPLOCALHOSTFULL explicitly set to [web dispatcher hostname].
[web dispatcher hostname] will be used as local fully qualified host name.
maximum number of sockets supported on this host: 5000
Server info will be retrieved from host: [hostname of backend system's message server]:[port of backend system's message server] with protocol: http
Checking connection to message server of system [SID of backend system]...
ERROR: No data from msg_server received -
please check that [hostname of backend system's message server]:[port of backend system's message server] is the HTTP port and not the native Message Server port
------------------------------

• SAP Web Dispatcher
• ABAP platform
• SAP S/4HANA

SAP Web Dispatcher, Running (init), sapwebdisp.EXE, YELLOW, MSPORT, MSSPORT, message server, HTTP, HTTPS, port wdisp/system_, wdisp/system_0 , no rule matched , KBA , BC-CST-WDP , Web Dispatcher , Problem