DP2000 Re-Addressing itself

Hi Everyone. Here is the system that we are running currently:

Hog3 Rack Mount - running as primary console and server V3.0.1
Hog3 Full Console - running as programming console V3.0.1
5-DP2000's
1- I/O Processor

Upon startup today, the DP2000 that should have been set to Net #3 had changed itself to #5. This unit is located in a area that would be difficult for anyone to just get to and re-address it.

Has anyone had this issue? Thanks.
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