Firstly, the esp32 module only supports the ip4 protocol and WPA2 encryption. You can check if your WIFI is set up correctly. In addition, ESP32 moudle is also only can use 4G wifi whose frequency is 2.4GHz. If it still not work, make sure that there is no special characters in your WIFI name and password, or try to make WIFI without password. Check these and have a try again. Good luck to you!