Make sure the wireless router’s security type is set to one of the following. If it is set to anything else, change the security type on the wireless router.
WEP-64 bit (40 bit)
WEP-128 bit (104 bit)
WPA PSK (TKIP/AES)*
WPA2 PSK (TKIP/AES)*
WPA3-SAE (AES)
*WPA PSK is also known as WPA Personal. WPA2 PSK is also known as WPA2 Personal.
Turn off the wireless router. Wait for about 10 seconds, and then turn it on.
Make network settings of the printer again.