Fwd: Problems using a data area with DDM.

Scenario:
We use a production and development system. I wrote a tool to promote code
from the development LPAR to the production LPAR. The process uses DDM
heavily. This process has worked without incident for the past 3 years.

We moved data centers and as a result, we changed our IP addresses on the
system.

Problem:
The code (in a CL program) creates a DDM dataarea on the source system to
the target system (production). That data area stores a sequential number.
The program uses RTVDTAARA QTEMP/remote_dataarea to retrieve the value.

We are now getting a CPF101A error for the RTVDTAARA and the process thus
fails. The second level text indicates that the error code is 17 which is
the DDM user ID and passwords are required. We do use user ID and password.

We made no changes here. The DDM setup uses a RDB connection over TCPIP.
All other DDM commands work like they should. I use SBMRMTCMD successfully
with the exception now of the RTVDTAARA which can only be used in the local
environment on the source system.

Does any know what is causing the this error?