CAP Ac Ethernet ports not detected

Hello,

I have two CAP Ac devices fresh out of the box.
I plugged it the first in and configured without issue.

The second one seems not to detect the two ethernet ports.
i cannot access via winbox or wifi or ip.
it is physically connected via the poe injector.

any assist please

Already tried connecting computer with Winbox on ethernet 2 ?
Does it emit default WiFi SSID ?

Same Issue.

Brand new from box, Hap AC lite, does not show up on winbox in neighbors, its not transmitting SSID.

I previously purchased a lot of 10 from a certified seller on amazon, I returned all 10 because of this issue, the seller sent me another 10, I’m still having the same issue.

Try the good old Netinstall
https://help.mikrotik.com/docs/display/ROS/Netinstall

Netinstall worked, thank you @Rugx -a side note, when doing netinstall, you will need to 1. Run as administrator, 2. turn off all anti-virus programs on your machine. (hopefully this will save newbies like me a few moments of head scratching.)

When you used Netinstall… Did it show the boards as having anything on them?

It didnt show anything that I noticed.