The Question is:
These error messages appears with a DE500-AA adapter installed in the system,
but not with a DE435 adapter or DE500-XA.
The Answer is :
The DE500-AA connection is not being correctly negotiated,
or there is a missing ECO, or there is a problem with the
network cabling associated with the DE500-AA, or there is
a problem with the DE500-AA controller itself.
For details on the OpenVMS version and ECO requirements
for the DE500 series, please review the OpenVMS FAQ section
on the DE500 series.
For details on the hardwarer requirements and for assistance
in troubleshooting your hardware and network configuration,
please contact your hardware or network services provider.