Find DM TCE--reassign IP Address


Greetings!  I recently had an installation where the network was changed from one IP network to another.  3 out of 4 DM TCEs easily adapted and found the new network automatically.  A fourth has reverted back to 169.254.whatever, and I have no idea how to get it back to the network everything else is on.  I cannot find it in DM Kontrol, even if I rescan for devices.  Any help?

As I am at the job site and really want this to be finished, a quick response would be amazing!