Hello and thanks to your reply,
I connected just 1 miner at the same time and conflicting is not possible.
Is IP SET button is same IP REPORTER button? If it is I have no luck to get recovery mode.
and at last no new IP listed in router dhcp list. and scanning network with arp also unsuccessful.
Is this maybe happend beacuse of new antminer s9j frimware?
I have no idea if the latest bitmain firmware can cause this.
Have a look at
https://docs.braiins-os.org/It may help you.