RFC user are not disconnected in BW when I close design studio dashboard
I have encounter a problem as below and hope to find a solution here.
BW server: BW 7.3
BOE server: SAP BusinessObjects BI Platform 4.1 Support Pack 4
Design studio: DS1.3 Support pack 1
Connection method: BICS query connection
Here is the problem:
The Design studio application dashboard consists of 13 queries (BICS connections to BW) in total. However, once the dashboard is opened, It creates 25 RFC sessions in BW ( you can check this by using tcode SM04 in BW workbench). Even though I click "log off" in launchpad to sign off the dashboard. RFC connections still saved in the BW. If I open another IE and open dashboard again, it creates another 25 sessions in BW. The problem is that the RFC user connections are never released. And soon it will pipe up and reach the limits of the number of RFC user connections in BW. Afterwards, I am not to able into BW any more.
I dont know whether anybody else encounter. Is this a BO problem or BW?