NWBC: run NWBC tcode giving error on page but sicf test works ok

Hi,

I just tried to run tcode NWBC from SAP. But the page shows soem error - service cannot be accessed. But testiing the service from tcode sicf, the UI works fine. Below are the urls which look different, does anyone know whay?

Here is the working url from sicf test:

http://<mydomain>:8000/sap/bc/nwbc/?sap-client=nnn&sap-nwbc-node=root

Here is the url from failure tcode launching:

http://<mydomain>:8000/sap/public/myssocnt?sap-client=nnn

Br,

Dong Zhu