This is something that was introduced with the latest Orion releases (core 2016 modules like NPM 12 and SAM 6.2.4).
The recommended action is to move the DPA application to anther host. Instructions: Move DPA to another server - SolarWinds Worldwide, LLC. Help and Support
If you do get into a configuration where Orion and DPA are running on the same host, you will have issues with alerting within Orion (endpoint listener conflicts).
Sorry for the inconvenience this causes!