Has anyone seen 2 SMT-5230s with the same Mac address 00:01:11:1d:17:04?
I upgraded from 1.30 to 1.38 and They revert back to 1.30.
What can cause this?

I've had 2 phones with the same mac on the same site once before. I just replaced one of them and installed the other one at another site.

You won't be able to use them both st the same site at the same time.