rbwapr-2nd no IP and wifi password don't work

Hello, I really need help with my new rbwapr-2nd.
1st problem is that I don’t get any IP when I connect a RJ45 cable, I have tried with several computers and checked the IP config on the computers, all with DHCP by default. The use of a static IP 192.168.88.2/3 as 192.168.88.1 as a gateway didn’t work.
1nd problem is that I cannot connect to the wifi of the rbwapr-2nd, the SSID is visible, but the password is not accepted.

I have reset to default settings, but the problem persists. Please help!

If you did reset to default, then you just see a Mikrotik SSID with no password…
So what password is not accepted ?