Trey I haven't done anything with M1 Cloud but maybe look under the RP Setup Menu option for M1 Cloud. But I never requested an M1 Cloud id.
Nevertheless, I think you have solved the puzzle.
But this begs the question of why my M1 is stuck sending the UDP packet.
So if i activated the broadcast somehow, how do i stop it?
And what if someone opens an M1 Cloud acct, will their XEP forever broadcast every thirty seconds even if they cancel the account?
On a positive note, since i can redirect the broadcast to another ip (by using my router), I could use this as my own M1 heartbeat monitor or IP monitor.
I'd need a remote computer to listen for the broadcast and if not received for a minute or two, then email me that my M1 is disconnected from the internet.....
Or sense a change in IP and notify me of the my new IP if so changed by my ISP...
Not something i'm going to implement at the moment, but could be useful to someone.
Nonetheless, my options are let the XEP do its thing and broadcast my serial number+mac address+ip 2,880 times a day, or i can block the broadcast, or i can redirect it....
None of which I think I should have to do!