You can make settings for this in the WLAN settings of the router:

WLAN security:
Disable, WEP, WPA-PSK, WPA2-PSK, WPA/WPA2-PSK

Encryption type:
TKIP, AES, AUTO

In addition, the following can be set, selected or changed:
WLAN (on/off), country (31 different), SSID, SSID broadcast (on/off),
key, WLAN channel (1-13 or auto), 802.11 mode,
Max. Number of users (1-15), AP isolation (on/off)

The router offers WPA-PSK including WPS.

I don't know yet. We will only use and install the device with an Italian SIM card during our holidays.