Dear friends. In new verison of Arduino core for ESP32 is new requirement - init hardware with Wifi.mode function (AP/STA/AP+STA).
esp_wpa2_config_t config = WPA2_CONFIG_INIT_DEFAULT(); //set config settings to defaultesp_wifi_sta_wpa2_ent_enable(&config); //set config settings to enable function
Today I have tested newest Arduino core for ESP32 and it worked great! Connection sucessful under PEAP + MsCHAPv2. So.. You don't need to downgrade your Arduino cores for ESP32 boards.