can not reach metal 2shpn after wireless mode change

Hello!
I have a test site where a basebox2 and two metal 2shpn are installed. The basebox2 has the built in wifi wlan1 and an extension card wlan2.

The wan interface is wlan 2 with dhcp and the clients are connecting to wlan1 with local network addresses 192.168.89.0/24.

One of the metal 2shpn was reachable from the basebox2 and with portforward from outside with ip address 192.168.89.2. It was configured to station pseudo bridge. Accidentally i changed the wireless mode to station. After that the webgui was lost to the 2shpn. I can not ping and mac ping the device from basebox2, but i can see it is connected to wlan1 of the basebox2 with …89.2 IP and it is appearing at neighbour list at basebox2.

How can i reach the device to revert the change it is a remote site with internet connection but it is far enough.