Digium d50 still attempts to connect proxy after reset to defaults

I’m a newbie and i’m studying asterisk. I’m assembling a homelab and found out that my D50 tries to connect to proxy (*.digiumcloud.net) even after resetting to defaults.
I tried different firmware’s and nothing changes.
How d50 can be reset to defaults without that proxy?

Cheers, Bogdan.

What is the MAC address of your D50?

Mac of my phone is 00:0f:d3:05:72:26

That unit was tied to a DCS customer account. I’m not privy to any of the details. You’ll have to contact someone in Customer Service.