JAVA Instance Install/add on

Hi ALL,

We have recently Upgraded SAP R/3 4.6c System to ECC 6.0. Its a HP-UX, Oracle 10.x - ABAP only Installation.

Now, I want to Install / add JAVA Instance on to existing ABAP Instance.

During JAVA add on Installation, SAPinst aks to set rdisp/msserv_internal as per SAP Note - 821875.

When I set rdisp/msserv_internal to 3602 and bounce SAP Instance, SAP llicense expires and Users are unable to Log on.

Port # 3602 is NOT used by any other applications.

Thanks,